When Keita frees Whisper, a ghost-like yōkai, from 190 years of imprisonment, Whisper pledges to protect Keita from supernatural dangers. Whisper also gives Keita a watch that allows Keita to see other yōkai. Together with the twin-tailed cat spirit Jibanyan, they encounter lots of yōkai-related problems and solve them.
Keita Amano (voice)

Whisper (voice)

Jibanyan (voice)

Inaho Misora (voice)

Usapyon (voice)
Fuyunyan (voice)

King Enma (voice)

Chiaki-senpai (voice)

Yûto (voice)

Demon Okure (voice)

Nurarihyon / Great Youkai Nura Neira (voice)

Komasan / Komajiro (voice)

Emi-chan (voice)

Komakaachan (voice)
