Set in Hakone Onsen, Eri Kataoka, a new SOD female employee in her first year in the production department, heads to the men's bath wearing only a towel as part of her new graduate training! She is challenged with the missions of "licking off the entire body of a male customer" and "having a male customer scrub his entire body"? She was only supposed to be checking the camera, but she is surrounded by dicks when ordinary male customers burst in! Will she be able to complete the mission? Or even have an unexpected insertion!?