Kemono ni Botsuraku Ojou-sama(2006)

Kemono ni Botsuraku Ojou-sama

16-year-old Jounouchi Youko is a young girl who has just transferred to a new high school due to her family's recent financial losses. During her first week there, she is assigned to the weekly infirmary duty with a the most dangerous guy in school, Tsukina-kun! How will she deal with Tsukina-kun and her infirmary duties at the same time?

(Source: Shoujo Manga Maniac)