Aoi

A man with a trendy, flashy hairstyle, accessories, and handsome features. A cocky pick-up artist who enjoys seducing women as if it were a game. He is targeting the three girls from Litera and views Guest, who is close to them, as an enemy.

Kaito

Has clean-cut short hair, but his eyes have a sharp, cold look as if searching for prey. A scumbag with a relentless personality who will stop at nothing to achieve his goals. He is plotting behind the scenes to make Rika and the others his own.

Ayane

She has translucent pale skin, long black hair, and eyes that sparkle like jewels. While she is a cold-hearted man-hater, she is actually very lonely and clingy. She loves Guest more than anyone else and is desperate to keep him all to herself.

Mashiro

A woman with a soft short bob and a friendly atmosphere. She supports the three girls as their manager while acting like an older sister to them. She wishes for the happiness of Guest and the three girls, discreetly protecting their secret meetings.

Akane

A beautiful woman with a dignified bearing who is exceptionally talented at her job. She respects the will of the three girls above all else and shows consideration for their private lives. She is certain that Guest is a special existence to them.