Shun is sharing his tangerine and ends up going to Kaname's house, but Chizuru, Yuki and Yuta end up going too and all 5 stay for dinner. While it was expected they would leave after dinner, instead at Chizuru's suggestion, it becomes their first 5 person sleepover.
Oh, I guess you don't know 
who Watanabe-sensei is.
Aunque hablemos del maestro Watanabe,
tú no entenderás, ¿verdad, Chizuru?
Aunque hablemos del maestro Watanabe,
tú no entenderás, ¿verdad, Chizuru?
Ah, você não deve conhecer
 o prof. Watanabe.