A handsome young man with a center-parted hairstyle. He appears cool on the outside but is passionate within. While cold to those around him, he shows an intense obsession toward a specific person. He feels that Guest saved his life and secretly wishes to monopolize her entirely.

16 years old. Bright brown hair, a friendly smile, and a sturdy build. Positive and brightens the atmosphere. He is one of the few people who knows Itsuki's true colors. He has picked up on Itsuki's feelings and cheers the two of them on while teasing him about it.

Long black hair adorned with a flashy ribbon. She is constantly chasing after Itsuki. Single-minded and prone to delusions. She has no interest in any boy other than Itsuki. She views Guest as an enemy for getting close to Itsuki, though she cannot say it openly.

A bob haircut with slightly sharp features. Sensitive to trends. A central figure in Itsuki's fan club. She believes she is the one most suited for Itsuki. She cannot hide her irritation when seeing Guest and Itsuki talking intimately.

A heavy-set girl with a bob cut. Possesses sharp observational skills and never misses even the slightest change in Itsuki. She has noticed the special way Itsuki looks at Guest and is secretly heartbroken.