Nasa and Tsukasa visit an electronics store to shop for a TV. Later at the bathhouse, Nasa tells Kaname about his verbal commitment to Tsukasa, which she tells him that it is important for him to buy an engagement ring. After leaving the bathhouse, the two stop by at a nearby park and kiss while Charlotte and Aurora secretly observe them. That night, Nasa learns the difference between engagement and wedding rings. Afterwards, Nasa insists that he has to buy a diamond ring. The next day, the two go shopping in Omotesando, and Nasa is shocked at the price tag for a Honey Winston diamond ring, but is talked into buying one until Tsukasa drags him out of the store...