Backdrop fallback

Marriage Toxin

Marriage Toxin

Share

Marriage Toxin

2026- 2026

1 Seasons

13 Episodes

7.5(45 votes)

Returning Series

Animation

Action & Adventure

Comedy

Overview

For centuries, the deadly arts have been perfected by Masters, and Five Great Families hold the greatest power and influence. Hikaru Gero, an heir to the Gero family, lives in the underworld as an elite assassin. When his sister is pressured to produce an heir, Hikaru asks Mei Kinosaki, a brilliant marriage swindler, to find him a bride. The most challenging mission of his life begins!

Where to Watch

Stream

Crunchyroll

Crunchyroll Amazon Channel

Links & Resources

Website IMDbView

Social & External

Production Companies

BONES Film

Bandai Namco Filmworks

BONES

Kansai Television

dentsu

Bandai Namco Music Live

Episodes

No episodes found for this season.

The people behind it

Cast & crew

10 featured cast members

Starring

Haruki Ishiya

Haruki Ishiya

Hikaru Gero (voice)

Shion Wakayama

Shion Wakayama

Mei Kinosaki (voice)

Anna Nagase

Anna Nagase

Kyoko Himekawa (voice)

Mariya Ise

Mariya Ise

Shizuku Ushio (voice)

Asaki Yuikawa

Asaki Yuikawa

Shiori Ureshino (voice)

Soma Saito

Soma Saito

Genya Naruko (voice)

Hinano Shirahama

Hinano Shirahama

Kimie Arashiyama (voice)

Shimba Tsuchiya

Shimba Tsuchiya

Piichi Nakagawa (voice)

Haruka Shiraishi

Haruka Shiraishi

Akari Gero (voice)

Isamu Yusen

Isamu Yusen

Toshiki Hanamaki (voice)

Creative team

Showrunner: Yoshihiro Oyabu
Hiroyuki Kikukawa
Produced by: Tatsuya Saito
Yukari Tachibana

Similar TV Shows

Bosco Adventure

Bosco Adventure

The Fountain of Life is the source of all life forces in the Bosco World. Princess Apricot, who is supposed to become Queen of Fountainland-the Guardian of the Fountain of Life-is kidnapped by villains who aim to rule the Bosco World. If Princess Apricot can't take the queen's throne by the next solar eclipse, the Fountain of Life will dry up. The animals living in the forest of Bosco, including Frog, Otter and Tortoise, decide to help Princess and take her to Fountainland in order to protect their peaceful life in the Bosco World. So begins the journey in a balloon full of dreams, hope, adventures, and love!

Master's Sun

Master's Sun

Joo Joong-won is the arrogant, greedy CEO of Kingdom, a conglomerate that includes a supermall and a hotel. "Ghost whisperer” Tae Gong-shil, is a misunderstood outcast who can't keep a boyfriend or a job since a near death experience left her seeing needy ghosts. She feels compelled to help them resolve their earthly issues so they can move on to the afterlife... and he feels compelled to think she's crazy. Soon their lives merge into a complicated web of hijinx, misunderstandings, and... yes, love.

Ranma ½

Ranma ½

Ranma Saotome, a teenage martial artist, and his father Genma travel to the 'cursed training ground' of Jusenkyo in China. There, despite the warnings of the Chinese guard, they fall into the cursed springs. From now on, whenever Ranma is doused in cold water, he turns into a girl and a cute, well-built redhead at that. Hot water changes him back into a man again, but only until the next time. To make matters worse, his father engages him to Akane Tendo, a girl who hates boys.

Are You Being Served?

Are You Being Served?

This comedy series, which follows the exploits of employees at London's fictional "Grace Brothers" department store, is full of sexual innuendo, slapstick, visual gags, and double entendres. Much of the show's humor parodies Britain's class system, and many of the show's characters are based on stereotypes of the period, including the effeminate Mr. Humphries and the rich, but stingy, store owner.

Martin

Martin

Sassy sitcom centering on radio and television personality Martin Payne. Series focuses on his romantic relationship with girlfriend Gina, her best friend Pam and escapades with best friends Tommy and Cole.

Ryu the Primitive Boy

Ryu the Primitive Boy

When Ryuu is born his tribe tries to sacrifice him to a Tyrannosaurus named Shirano because of the color of his skin. He is however saved by a monkey who raises him as her own son. Meanwhile Ryuu's mother has left the tribe and is out on a quest to find Ryuu. 16 years later Ryuu meets a girl named Ran who was sold to the tribe Ryuu originaly came from. The tribe is not happy to see Ryuu alive and tries to sacrifice him again, this time by burning him alive. Before they can get the deed done the tribe is massacred along with Ryuu's adoptive mother by Shirano. Ryuu then sets out on a quest together with Ran to find his mother and Ran's brother Don.

Lime-Colored History of War

Lime-Colored History of War

Umakai Shintaro, a Russian diplomat originally from Japan, defects and goes to Sapporo to teach at a girls academy. However, that girls academy is not typical—it is on board the Amanohara, and the five girls Shintaro teaches are known as the Lime Unit—girls with the ability to summon powerful beings to fight for them. Shintaro eventually becomes their teacher and general in battle, and so the six embark on a weird and excessively erotic journey, as Shintaro helps the girls overcome their weaknesses, become stronger for the final stand at Lushun, and also understand the motives of the "Russian Spiritual Corps" that assist the opponent, which, unfortunately, has one member whom Shintaro knew well...

Moyashimon

Moyashimon

Follow the life of Tadayasu Sawaki as he enrolls in an Agricultural University and learn about bacteria and viruses that he alone can see with the naked eye.

School Days

School Days

A rumor states that if you take a photo of someone you like with your cellphone and keep it hidden, they'll fall for you. Will Makoto win his love by taking a picture of Kotonoha without anyone knowing?

Brothers Conflict

Brothers Conflict

Imagine being the only child your whole life, and then suddenly finding yourself gaining 13 step-brothers! Ema Hinata's lonely life takes a new and exciting turn when her single father Rintarou Hinata, a famous adventurer, falls in love and marries Miwa Asahina, an apparel maker. In order to give the newly-wed couple space, Ema starts living with her new step-brothers in a mansion called Sunrise Residence and for the first time, experiences being part of a lively and big family. She finally feels safe and content. Each brother has his own unique personality, and Ema soon realizes that it is not only family love that grows between them, but romance as well. Which brother will be the one to steal her heart in the end?

Looking

Looking

Three friends in San Francisco who explore the fun and sometimes overwhelming options available to a new generation of gay men.

Red Data Girl

Red Data Girl

Izumiko Suzuhara (15) was born and raised at Tamakura Shrine, and always destroys any electrical device she touches. She decides to try living in the city, and enrolls in Houjou High School in Tokyo. With her are her guardians son and Izumiko's childhood friend Miyuki Sagara. While she's there, an entity called "Himegami" appears. She learns she is something called a "kami" a vessel for a shinto spirit, while Miyuki is a "yamabushi", a warrior meant to protect the "kami."

Sinchronicity

Sinchronicity

In Manchester, Nathan is in a love triangle with Fi and Jase, and the trio explore how chance and coincidence shape their lives.

Ellen

Ellen

Ellen works in a Los Angeles bookstore called Buy the Book and hangs around with her friends discussing lovers, work and family.

Crazy Queen

Crazy Queen

Our female lead time-travels to the past and into the body of a female monarch of a kingdom with a male harem of about 30 men. A place where she can get them pregnant.

Tesla Note

Tesla Note

Genius Nikola Tesla preserved records of all his inventions inside crystals known as Tesla Shards. After an inexplicable incident in Norway, Botan Negoro, a descendant of ninjas raised to be the ultimate agent, is recruited on a mission to recover the crystals. Her partner through this is self-proclaimed No. 1 agent, Kuruma. With the fate of the world at stake, the fight for the shards begins.

Ichikei's Crow

Ichikei's Crow

Michio Iruma is a former lawyer. He now works as a judge in the first criminal court (commonly known as "Ichikei") of the Tokyo District Court. He is an unusual judge. To avoid issuing wrong judgements, Michio Iruma seeks out the truth in cases by performing on-site inspections by himself. Due to this, lawyers and prosecutors are afraid of him.

A Couple of Cuckoos

A Couple of Cuckoos

16-year-old super-studier Nagi Umino, second-year student at the Megurogawa Academy high school, was switched at birth. On his way to a dinner to meet his birth parents, he accidentally meets the brash, outspoken, Erika Amano, who is determined to make Nagi her fake boyfriend as she never wants to actually marry. But once Nagi makes it to dinner, he finds his parents have decided to resolve the hospital switch by conveniently having him marry the daughter his birth parents raised...who turns out to be none other than Erika herself!

Beauties in Jiang Hu

Beauties in Jiang Hu

During the Ming Dynasty, the emperor suddenly became seriously ill and fell into a coma. The court was leaderless, causing chaos. At this time, Hei Ni, the king of the Black Teeth Kingdom, came to visit. The 18th prince Long'er hosted a banquet to entertain the guests. During the banquet, Hei Ni boasted that the country's national power was boundless and it had four unparalleled masters: the God of War, the God of Poetry, the God of Cookery, and the God of Chess. Long'er secretly laughed because these four were exactly the strengths of the Han people, so the two sides immediately decided to compete, but the cunning and despicable Hei Ni had already bribed the four masters of the Ming Dynasty. Only then did Long Er realize that he had fallen into his trap. In desperation, Long'er signed an agreement with Hei Ni: Three months later, the two countries will have a competition; if the Ming Dynasty loses, it will cede territory and pay compensation to the Black Teeth Kingdom.

Takane no Hana-san

Takane no Hana-san

Takamine Hana is a super ace employee at a traditional confectionary company. Despite her elite look and high performance, Hana only has love skills of a fifth grader. Hana has recently fell in love with Yowaki Tsuyoshi, a young employee who always gets scolded. Can Hana make Tsuyoshi like her back? Will a love bloom between the two?

Recommended TV Shows

KILL BLUE

KILL BLUE

Legendary hitman Juzo Ogami has never failed an assignment. But after a mission, he’s stung by a mysterious wasp and wakes up in the body of a 13-year-old boy! And to make things even weirder, he receives a bizarre new order: infiltrate a middle school. Now the once-feared assassin must balance the chaos of school life with his deadly work, all while searching for a way to regain his adult body!

Mission: Yozakura Family

Mission: Yozakura Family

Taiyo Asano has been on his own ever since his parents died and the only one who seems to care for him is his childhood friend and classmate, Mutsumi Yozakura. But Mutsumi has a secret—she is the head of a family of spies! And on top of that, her brother Kyoichiro is dangerously protective of her! To stop Kyoichiro from killing him, Taiyo and Mutsumi must take the ultimate leap—marriage! Because in the Yozakura family, family cannot kill family.

Black Cat

Black Cat

The bounty hunter Sven is barely scraping by when he crosses paths with the Black Cat (a.k.a. Train Heartnet) and the young bio-weapon Eve. The three new companions will need more than luck to survive when they find themselves sought by both the Chronos Numbers and a Taoist revolutionary group called the Apostles of the Star.

Knight's & Magic

Knight's & Magic

A mecha otaku is reincarnated into another world as Ernesti Echevarria, also known as Eru. In this world, huge humanoid weapons known as Silhouette Knights exist. Dreaming of piloting those robots, Eru and his friends, Archid Olter and Adeltrud Olter, aim to become Knight Runners.

InuYasha

InuYasha

Kagome Higurashi is a modern day young girl who lives with her family by the old Higure shrine. Unbeknownst to Kagome, she is the reincarnation of priestess Kikyo and posseses the "Jewel of Four Souls" (the Shikon jewel). One ill-fated day, Kagome locates an ancient well near her home and is abruptly transported through the well and into a feudal Japan, inhabited by demons. There, she encounters Inuyasha, son of a powerful demon father and a human mother, who is pinned to a tree by an enchanted arrow.

Sengoku BASARA: Samurai Kings

Sengoku BASARA: Samurai Kings

During the Sengoku period, there are many factions constantly at war. One of these is led by a one-eyed man named Date Masamune and another by the imposing Takeda Shingen. The latter has a fiercely loyal subordinate named Sanada Yukimura who goes head to head against Date Masamune multiple times, but the battles between them tend to get interrupted. One such battle occurs when both men try to go after another leader named Imagawa, and they’re forced to break off their heated duel when Imagawa attempts to flee the scene with his body doubles. Yukimura and Masamune go after separate Imagawas, but all of the doubles are killed by a third party, and when their paths cross again, they are in front of the menacing Oda Nobunaga and his army. It was Nobunaga’s subordinates that killed those body doubles, and Nobunaga himself proceeds to kill the real Imagawa with a shotgun blast to the head.

City Hunter

City Hunter

Ryo Saeba works the streets of Tokyo as the City Hunter. He's a "sweeper" and with his sidekick Kaori Makimura, he keeps the city clean. People hire the City Hunter to solve their dangerous problems, which he does with a Colt Python. When Ryo's not working on a case, he's working on getting the ladies, and Kaori must keep him in check with her trusty 10 kg hammer.

Naruto Shippūden

Naruto Shippūden

After 2 and a half years Naruto finally returns to his village of Konoha, and sets about putting his ambitions to work. It will not be easy though as he has amassed a few more dangerous enemies, in the likes of the shinobi organization; Akatsuki.

Kimagure Orange Road

Kimagure Orange Road

It can be hard moving to a new school, and fifteen-year-old Kyosuke has it harder than most. He’s fallen head over heels for his classmate Madoka, a girl who won’t even give him the time of day, and unintentionally ended up dating her best friend, Hikaru, instead. Worst of all, Kyosuke and his family have amazing supernatural powers, but he has to keep them hidden from the rest of the world! How is Kyosuke ever going to balance the affections (or lack thereof) of two girls, schoolwork, and his secret abilities all at the same time?

Maison Ikkoku

Maison Ikkoku

Godai is a ronin (someone who has failed university entrance exams) living in a run down apartment house called Maison Ikkoku. Among the other residents are the nosy Ichinose, the sexy Akemi Roppongi, and the mysterious Yotsuya. The others are given to having wild parties which makes it difficult for Godai to study. Into this mayhem comes the recently widowed Kyoko as the new live-in manager. Godai falls for her, but doesn't have the nerve to tell her. As time passes, their relationship slowly develops amid life at Maison Ikkoku, despite all sorts of romantic hurdles.

A Ninja and an Assassin Under One Roof

A Ninja and an Assassin Under One Roof

On the way home from school one day, Konoha Koga rescues Satoko Kusagakure, a ninja who escaped her village. Soon, pursuers from the village show up in search of Satoko only to be deftly dealt with by Konoha. As it turns out, the unassuming high schooler is actually an assassin. Thus, the potentially cutthroat cohabitation of a ninja and an assassin begins!

You are Ms. Servant

You are Ms. Servant

Hitoyoshi, a high school kid who lives alone, hears a knock on his door. He opens it to find a strange girl offering to be his maid. She has beautiful black hair, graceful manners, and…a dark past as an assassin. But despite her deadly background and lack of household skills, Hitoyoshi takes her in. As she adjusts to her new life, she begins to experience emotions she’s never felt before.

SPY x FAMILY

SPY x FAMILY

A spy, an assassin and a telepath come together to pose as a family, each for their own reasons, while hiding their true identities from each other.

K

Shiro is an easygoing teenager content with just being a student—until his seemingly perfect life is halted when a bloodthirsty clan, glowing red with fire, attempts to kill him in the streets. Unbeknownst to Shiro, he is suspected of murdering a member of their clan and will need a miracle to escape their vengeance. Miraculously, a young man named Kurou Yatogami swings in and aids Shiro in his getaway, only to reveal he's also after Shiro's life. Now a hunted man, Shiro will have to evade the clans of seven powerful kings and desperately try to prove his innocence—before it’s too late!

Naruto

Naruto

Naruto Uzumaki, a mischievous adolescent ninja, struggles as he searches for recognition and dreams of becoming the Hokage, the village's leader and strongest ninja.

Monster Hunter Stories: Ride On

Monster Hunter Stories: Ride On

In a world where both men and monsters exist. Those who hunt the monsters are called Hunters. But in a small corner of the Hunter's world, there are those called Riders who bond with and coexist with monsters. With their Kizuna Ishi (Bonding Stones) that allow them to awaken the hidden power inside monsters, Riders live in secrecy together with their Otomon, the monsters they formed a connection with. Ryuto, a young boy living in the Rider village of Hakum, dreams of becoming the world's best Rider. Having just turned 12, he sets out to find his own Otomon for himself before the ceremony where he is given his own Kizuna Ishi. Together with his kind-hearted childhood friend Cheval, his inquisitive childhood friend Lilia, and his partner Naville, he sets out deep into the forest, and has a miraculous encounter with a Rathalos.

Hunter x Hunter

Hunter x Hunter

Gon, a young boy who lives on Whale Island, dreams of becoming a Hunter like his father, who left when Gon was still young.

Ranma1/2

Ranma1/2

Akane Tendo meets her new fiancé, Ranma Saotome, a martial arts prodigy with a twist: he magically transforms into a girl upon touching cold water.

GetBackers

GetBackers

Ban Mido and Ginji Amano run a freelance business of recovering anything lost or stolen. They call themselves the GetBackers, and they're a super powered duo.

Nisekoi

Nisekoi

Raku Ichijo is an average high school student. He also happens to be the sole heir to the head of a Yakuza Family called the Shuei-gumi. 10 years ago, Raku made a promise… a secret promise with a girl he met. They promised one another that they will “get married when they reunite.” Since then, Raku never let go of the pendant the girl gave him.