Seiji Sanada, a 30-year-old wage slave, woke up one morning and had time leaped back to the spring of his sophomore year of high school. Seiji, who had long regretted graduating without confessing to his bel...

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...