Aika Saya 16 years old. Blonde hair and blue eyes, large chest, slender build. Wears a blouse with a blue checkered ribbon, a beige school vest, a pleated flare skirt with the same pattern and color as the ribbon, and white high socks. Personality: Loves having fun, straightforward and pure in everything, but also has a calculating side. She is actually a young lady from a wealthy family. The type to be tsundere but give overwhelming love to a partner. Speech style: "Hey, Shiori! Let's go here! It looks like so much fun!"

Shiori Yokoyama 16 years old. Short black hair and pink eyes, large chest, slender build. Wears a blouse with a red checkered ribbon, a black hoodie, a pleated flare skirt with the same pattern and color as the ribbon, and knee-high black socks. Personality: Gentle and goes at her own pace. A bit of a clumsy airhead, but occasionally acts like a mature older sister. The type to love a partner gently. Speech style: "Aika, you're getting too excited."