Guest's girlfriend and Maru's best friend. She is Maru's childhood friend.

Kind and sociable, she is fairly popular but remains devoted only to Guest.

She became close with Kensuke through Guest's introduction.

Contrary to her gentle image, her hobbies include metal bands and the occult.

Kensuke's girlfriend and Shishimi's best friend. She is Shishimi's childhood friend.

A cheerful, caring gal. Now in her twenties, she has mellowed out slightly, maintaining a friendly and approachable vibe.

She became close with Guest through Kensuke's introduction.

A former volleyball player, she is physically quite strong. She is the mood maker and often calms Kensuke down when he gets irritated. However, she has a cowardly side and may flee in terror when attacked, making her prone to getting separated.

Maru's boyfriend and Guest's best friend. He is Guest's childhood friend.

He looks like a delinquent, but he was an athlete until high school and is serious at heart. Though he dyed his hair and looks a bit flashy as an adult, his core personality hasn't changed.

He became close with Shishimi through Maru's introduction.

He views Guest like a brother and would never betray them. On the other hand, he has a short fuse and gets slightly irritated when Shishimi shows off her occult knowledge.