Orphan and manual laborer Toranosuke is seeing college student Ryuichi. After Ryuichi graduates, they plan to move in together. The young couple are madly in love with one another. However, one day, after buying medicine for a cold on his way home, a man bumps into Toranosuke, causing both of them to mistakenly switch their bags. Once home, thinking it's his medicine, Toranosuke unwittingly takes a mysterious drug and heads to bed. When he wakes up later, he realizes... his body has turned into a woman's! Toranosuke laments that his manhood is gone, so he feels he can't show Ryuichi the same loving he used to!! But, Ryuichi seems to be pretty into it ! A genderbent top and an assertive bottom! Don't miss out on this first BL of its kind!!