Honda belongs to the swim team and receives private coaching from Momotani-senpai, a retired swimmer. One night, after getting tipsy together, Honda uncovers Momotani's female swimsuit attire and attempt to lure him. How will Momotani react to Honda's attraction towards him, and will this affect their friendship?
Also, there is Mizugi Kareshi, a doujinshi that focuses on a different couple. Atsushi and Yu used to be best buddies until Atsushi suddenly halted communication. Could it be because of Yu's habit of cross-dressing in swimsuits? What happens when Yu exposes Atsushi's not-so-innocent desires?