Nazuna! Nazuna!

(from wikipedia.jp):
Momo, a sophomore at Sakuraen High School, is molested on her way to school on the bus and loses her student handbook at the same time. Momo's best friend, Yomogi, also loses a book on child-rearing and childbirth that she was supposed to show Momo on the same bus. On the same day, a beautiful boy named Serina Nazuna is transferred to her class. Momo thinks he is the culprit and tries to rehabilitate him, but when she visits Nazuna's house, she finds out that Nazuna is raising a younger sister and four younger brothers. He tells her that he stole Momo's notebook in order to verify her name and face, and because he wanted to try freeing himself from his cold-blooded father in the house where he now lives.

Contains Rodian Romanovich Raskolnikov and Respond, People of Planet Kirara! (Kirara-Seijin Outou seyo). Rodian Romanovich Raskolnikov is Yumiko Ooshima's own adaptation of Crime and Punishment.

Note: The only edition of Nazuna! Nazuna! is the Hakusensha bunkoban - it was omitted from prior Ooshima selections because the original manuscript was presumed lost, and the subject matter was similar to that of I Love Johan! (Johan ga Suki), another one-shot of Ooshima's.