K-ON2 13th story ZANSYO-MIMAI!

The 3rd grade students prepare for entrance exam, so they study at library.

Azusa bored alone in her house.
She wanted to have more fun in her summer vacation, then Ui came her house...


date
June 29 2010
http://www.tbs.co.jp/anime/k-on/story/story213.html

"Zansyo-mimai" is a kind of letter that custom of Japan sending at end of summer , for ask friends "are you OK?"