My favorite aunt is a naughty and kind apartment manager.

Hyoma, who was told by his company to work in Tokyo, moves into the company housing apartment where his aunt Kaori lives, but the previous resident, Mitaka, is staying and there is no room available. Kaori, who was acting as the manager on a rotating basis, intervened and promised that Mitaka would leave on the next payday, and during that time, Kaori's husband, who was working alone, would lend the spare room to Hyōma. That night at the welcome party, Kaori gets drunk and starts groping her crotch while muttering "I miss you..." in her sleep.