Rei Futami

Ippei, a private detective, was suddenly involved in a strange incident at the request of Nao. He was guided by Nao and went on a trip to the hot spring town with his assistant, Santa, but when Nao's best friend and landlady Harumi had a seizure for some reason, he was in agony in search of a man.

Hanako and Kenkichi's couple have moved to the two Nagaya in the downtown area where Hanako's mother lived until her death. When I easily arranged my luggage and ate soba noodles for delivery, there was a man who went up and started eating soba noodles together without greeting. The next resident, Soka Chihei. Hanako, who was born and raised in downtown, was accustomed to such an unreserved relationship, but Kenkichi, who was raised by Yamanote, was unpleasant.

Inventor Shinpei suddenly got a prescription for a rejuvenating elixir. However, the virgin joy juice necessary for the manufacturing method could not be obtained and it got stuck. Shinpei, who snooped on the affair of Keisuke Hanaya and Haruko, a female college student, became a transparent human when Haruko prepared it using paper wiped with love juice and drank the secret medicine that was made.