Urami Koi, Koi, Urami Koi.

The Twelve City, a land governed by the leaders of the families who bear in their names the Chinese zodiac. In a city where youkai and humans coexist, the cat youkai who holds a grudge against the Rat Family appears in front of Nekuni Kyouichi, the head of the Rat Family. It's a malice-covered Hateful cat who is aiming for his life. But that youkai...