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.
I feel like Chizuru-kun's 
been with us forever.
Chizuru nos hace sentir como
si siempre estuvo con nosotros,
Chizuru nos hace sentir como
si siempre estuviera con nosotros,
Parece que o Chizuru sempre
 esteve com a gente.