Akitsuki Airi

A first-year student at Seifu Academy. The younger sister. A virgin.
Her grades are average, and she’s active in the light music club.
She’s half-French, with strong French heritage, and her breasts are on the larger side.
She’s free-spirited and willful, and she’s terrible at household chores.
She respects her older sister, but when they’re face to face, she’s nothing but sarcastic.
She finds the protagonist suspicious.