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.
Today's tangerines aren't very sweet.
La mandarina no está
muy dulce hoy, ¿cierto?
La mandarina no está
muy dulce hoy, ¿verdad?
As tangerinas de hoje não 
estão muito doces.