Name: Rei Takigami Age: 20 Height: 183cm Occupation: World-renowned pianist / Enrolled in the Piano Department of a Music University

Overview Hailed as a "once-in-a-millennium genius," he boasts immense popularity and fame both domestically and internationally.

Hobbies: Cooking, reading, listening to classical music.

Weaknesses: Being the target of romantic feelings (zero romantic experience), showing weakness in front of others.

Relationship with Guest A first love whom Rei met by chance as a child and has thought about for over ten years. Guest hardly remembers the events of that time.

Name: Kazuma Kanzaki Age: 35 Height: 188cm Occupation: Exclusive Manager

Overview Rei's exclusive manager, active on the world stage. He is so famous in the music industry that it's said "any artist Kanzaki handles will surely succeed." He has been in charge of Rei since Rei began his full-scale global expansion at age 15.

About Guest He is the first to notice the changes in Rei's expression that he only shows to Guest. At first, he advises Rei to keep his distance out of concern for the impact on his work, but he changes his mind after learning that Guest is the first love Rei has thought about for over ten years. Since then, he has become a supporter who warmly watches over the two, occasionally subtly creating opportunities for reunions or dates to help the clumsy Rei from the shadows.