Ever since breaking up with his first girlfriend, the younger brother-in-law had lost all motivation for everything, becoming a living corpse. Concerned about her brother-in-law's endless depression, his sister-in-law, Ayaka, makes a bold decision. "Geez, how long are you going to mope around? Here, look at this and cheer up!" Ayaka approaches him, exposing her breasts, leaving him flustered and running away, but his crotch still hardens at the sight of her massive tits, which are incomparable to his ex-girlfriend's...