Hasama accidentally opens a package addressed to Mio, the married woman next door. Blushing at the sexy underwear that comes out, Hasama takes it to his neighbor, who then invites him to a tea party... where he is asked to give his opinion on the underwear that was delivered to solve the couple's sexless problem. "Hey, I'm going to try it on, so tell me what you think. Don't look, under any circumstances." Being told not to look makes Hasama even more curious. He sneaks over to peek at her getting changed, and finds Mio struggling to close the hook on her front-hook bra...