Shino Amakusa 天草シノ

The student council president and a second-year student. She is serious, diligent, and talented in most subjects. However, she is almost always thinking of perverted things, even suggesting that one of her main reasons to be interested in Tsuda is curiosity about information not covered in health classes. She is also a very popular girl with a lot of female fans in school, and has a complex about her chest, which is exacerbated by the fact that Aria happens to be more well-endowed than she is. She later develops some feelings for Tsuda.