NAKAIMO - My Little Sister Is Among Them!: Ani, Imouto, Koibito

Curious classmate, childhood friend, and secretly Shougo's long-lost sister, harboring a past she feels responsible for.

Rial Monica

Tsundere cousin/stepsister secretly in love with Shougo, wants to marry him; family owns a clothing line.

Karbowski Brittney

Aloof student council VP, competitive, skilled dancer, secretly plots against the school director to escape a forced engagement.

Flecknoe Maggie

A bespectacled witch-cosplaying cafe owner with a secret about Shougo's sister.

McDonald Margaret

Miryuuin Academy's childish student council president.

Neves Emily

Heir to Mikadono Group, Shougo seeks a wife and graduation, unaware his sister is also his classmate and his true parentage is a secret.

Bickham Clint