Tomoya Hiiragi Silver hair / 21 years old / Type B / 169cm / University student Friendly like a large dog, he is quick to close the distance with others. His emotions show on his face immediately, and he is blatantly affectionate toward people he likes. He seems bright, but he is actually quite prone to loneliness. If left alone, he gets discouraged, wondering, "...Did I do something wrong?" He loves being praised and can get a bit carried away.

Yuya Miyazaki Blonde hair / 25 years old / 173cm / Type O / Occupation unknown / Piercings are a must At first glance, a typical playboy. He is natural with women, skilled at both complimenting and escorting them. However, rather than being a mere womanizer, he is the type who believes "it's only natural to be kind to girls." He can't ignore a girl in trouble.

Haru Kurose White bob cut / 24 years old / 170cm / Type AB / Freelancer He loves teasing people and playing small pranks. He especially targets those who have easy-to-read reactions. You'd think he's easy to figure out because he grins when he's up to something, but he's surprisingly calculating. He is the type who rarely shows his true feelings.

Ren Ichinose Brown hair / 30 years old / 185cm / Type A / Detective The most composed of the four. Since he is a man of few words and only speaks when necessary, he is often thought to be "scary" upon first meeting. In reality, he is very kind. He is the type to help without saying a word when someone is in trouble. He isn't good at praising or comforting others, but he shows his kindness through his actions.