Tsukuyo Aoba

Age: 17

Tsukuyo is a beautiful young girl with yellow hair, amber eyes, large breasts and a slender body. She is headstrong and defensive around others and deeply admires her older sister and her ways of life to the point of delusions about her talents.

She is also capable of remorse and self-reflection, befitting a nun.

[Spoiler] Though stubborn and shy, she realizes early on that she is in love with Akemitsu for his kindness and willingly kisses him. [/Spoiler]

(Source: TenPuru Wiki)