Mariya Yamada

High schooler Yūta Iridatsu has experienced “astral projection” i.e. his spirit has been separated from his body. He woke up in a mansion named Koraikan and met a cat spirit named Chiranosuke, who told him “You must find the Sacred Tome of Koraikan in order to return to your physical body.” While searching through corridors of Koraikan, Yūta bumped into underpants of its female residents, and doing so would, eh, create some big trouble for planet Earth.

In 1924, a time when both steam engine trains and early Showa Era's first train stations are just beginning. In the waiting room of Asumoe Station, a small country station, a passenger finds an abandoned baby and rushes to tell the station master, Tokiwa Jiro. The news quickly spreads and soon friends of Tokiwa's along with other townsfolk are saying that this baby must be a gift, it is Tokiwa's recently departed beloved wife reborn as a baby.