Chou ni Naru Hi
The Day I Become a Butterfly
チョウになる日。
The Day I Became a Butterfly is a volume which contains six chapters, each a different story:
1) The Day I Become a Butterfly
2) You at the end (Hate ni Aru Kimi)
3) The Lonely War
4) Blue Cat Tunnel
5) Tokyo Alien Ulala
6) Planet Yours
(Source: ActiveAnime)