Is Penguin Musume♥Heart hentai?

ONA · 2008 · 22 episodes · R+ - Mild Nudity

Comedy, Ecchi, Otaku Culture, School, Shounen

Sakura Nankyoku is a total otaku. Due to a fluke, she gets elected as her class' Student Council President. Everything takes off from there into a series of crazy misadventures revolving around Sakura, her family, and her classmates. (Source: ANN)