Kaoruko Rokuonji

The perfect Student Council President, but is secretly an illustrator and manga artist with a reputation for racy drawings. A third year student at the academy serving as the Student Council President. Her grades are always in the top; she carries herself with dignity; and treats everyone sociably, without any prejudice. This has brought her the trust of not only all of the students, but all of the teachers in the school as well. Behind the scenes, she's quite a popular illustrator who goes by the pen name "Mr. Deer / Shika-kun". Forming a team with the protagonist, they have a running manga in a weekly magazine, but because all of their exchanges have been via e-mail or their editor, they didn't know they both attended the same school. Her family is affluent, and her grandfather is well-known around town. She's been raised strictly by her parents to make sure she doesn't bring any shame to the family name. In response, she became obsessed with manga and anime that she had just happened to come across, and turned into an otaku. Sometimes she also comes up with puns in the middle of conversations and people end up having no idea how to respond. (Source: VNDB)