An old apartment complex 'さ○ら荘' in Kitashinjuku, lacking modern baths. The perverted young beauty 'Eri-chan' lives in room 110 and leads a highly perverted daily life. Virgin boys, uninspired salarymen, old men living in the same apartment... Eri-chan gets aroused in the bath and picks up men to bring back to her room, whether it's day or night, after returning from the public bath.
