Never-Ending Summer Break

The Disappearance of Nagato Yuki-chan – Season 0

Kyon plans to do his summer homework, but Haruhi constantly talks him and others into doing various leisure activities, like visiting a water park, attending Bon festival, stargazing, fishing, and going on a movie marathon. Eventually, they all gather at Kyon's place at the last moment to do their homework but end up playing cards and video games instead.