Manga with 5 one-shots and one extra.

Sensei is a veterinarian who works hard and always sleep in the last train. One day, a boy wake him up and all that he thinks is "Kind childen really do exist"... But is that little kid really kind? Or is he like a stray cat?

Asai and Yoh were childhood friends, but Asai had to move out, so he leaves a lesson to Yoh: "You should get stronger". Years later, Asai is a new student and, whoa, Yoh studies there too, but... He became a deliquent?!

"It's impossible to talk to animals", that what Lin said when he was visiting Kuranosuke, a genius that knows everything about quantum physics, fundamental chemistry and medicine. After eating with him, Lin goes home and sleeps. On the next he wake up a little... Animal?!

Yori has a homossexual brother and he just can't stand that. But, to be more complicated, Kawamori, a close friend, likes him. Yori tries to ignore it, but when a girl appears, what will he do? "What if Kawamori falls for someone else...".

One day, Akutsu meets Mizumoto in a empty street. "I'm glad I meet you. I was wondering what do to if I were the only one alive". Those meetings keep on going when they are alone, but in school Mizumoto ignores him. Will they only talk in a empty world?

A extra from Sweet Days, with Asai and Yoh's young brother.