The daughter of the Konohana Group, Japan's top conglomerate. She is beautiful and academically brilliant. While she acts as the "perfect lady" everyone admires in public, she is actually a lazy girl with no life skills. Only in front of Itsuki can she let down her guard and show her vulnerable, spoiled side.

The daughter of the Tennoji family, a prestigious house rivaling the Konohanas. She views Hinako as a rival. Her creed is to act with dignity and nobility. She teaches manners and deportment to Itsuki, who has just transferred to Kikou Academy.

A cool and capable maid serving the Konohana family. She thoroughly trains Itsuki—who has become Hinako's exclusive caretaker—in everything from studies and etiquette to self-defense.

The daughter of the Miyakojima family, where Itsuki stayed as a guest when he was younger. She is athletic and perceived by those around her as a flawless, cool beauty, but she is actually extremely shy and struggles to make friends at the academy.

Itsuki and Hinako's classmate. He has an unpretentious personality and treats Itsuki, who is nervous after just transferring to Kikou Academy, in a friendly manner.

The mood maker of Itsuki and Hinako's class. Like Katsuya, she is a precious friend to Itsuki who he can talk to without hesitation within the academy.

Hinako's father and the chairman of the Konohana Group. He appreciates Itsuki after Hinako took a liking to him following a kidnapping incident, and welcomes him into the household as her exclusive caretaker.