With only ten days left before his entrance exam, a student taking an extra year to prepare is distracted every day by lewd cries from the apartment next door. When he finally complains, a flustered couple rushes out and the resident, Honami, explains that she runs a private spa from her room. Feeling guilty about the noise, she offers him a complimentary treatment. Her special service soon turns into seven days of S-curve riding that refuses to release his hard cock until he has ejaculated repeatedly.