Backwasher! Her and I, in the Women's Bath!?
A comedy series that brings humor and levity to its premise.
"Is This Really Massage...?" Souta started to work part-time at Sentou, which is his hometown, as a back washer, he ends up washing Aoi, who is his classmate but trying to cover her identity... As he massages her with days of hate from her harassment continues, He realized that Aoi has in love with him one-sided...! When he touches her hot skin, She realizes that the one who washes her is Souta. A love comedy between a clumsy guy and girl behind the red curtain! (Source: MAL News)
Plot summary from MyAnimeList. Data and images via Jikan API.