Nanao Minori♀

Minori is in a grade below Hideaki, and is a close friend to Eru. She is very gentle and quiet, liking to do things at her own pace. She has the special skill to go to sleep anywhere, so she always carries around her favorite pillow. She often rests after school in the school library. Despite her small build, she has the largest breasts of any of the heroines in the game.

[from Wikipedia]