Araiya-san! Ore to Aitsu ga Onnayu de!?(2019)

洗い屋さん！～俺とアイツが女湯で！？～

Male student Souta Tsukishima begins working at his family's public bathhouse as a back washer. While concealing her true identity, Souta's classmate Aoi Yuzuki visits the bathhouse. A relationship between the two begins to develop when Souta washes Aoi's back.