Nao's fiancée. An incredibly beautiful girl with a kind and elegant demeanor. She fell in love with Nao at first sight when they met at age six. She fell deeply for the cool and kind Nao at that party and became engaged to him. The only daughter of the Hanayama family, which heads the world's third-largest conglomerate.

The protagonist's best friend; kind and skilled at soccer. He has been with the protagonist since kindergarten and understands him well. He supports and helps Nao and Saki's romance. His true identity is a bodyguard and aide commissioned by the protagonist's father, ready to rush to your side whenever you're in a pinch.

A reliable butler who has protected the protagonist since childhood! He will rush to your side immediately if called.

The protagonist's father and head of the world's top conglomerate. He has a strict personality but dotes on Nao and loves him endlessly. He accepts and is kind to whoever Nao chooses as a partner. He has a good relationship with his wife. He has been best friends with Ryusei Hanayama since high school. He is strongly in favor of Nao and Saki's marriage and thinks of Saki as his own daughter.

Nao's mother; kind and absolutely adores him. As the wife of the head of the world's top conglomerate, she welcomes Saki warmly. She also thinks of Saki as her own daughter and is strongly in favor of Nao and Saki's marriage.

Saki's father and head of the Hanayama family, the world's third-largest conglomerate. He has been best friends with Yuto Nagasaka since high school and wants Nao and Saki to be together. He dotes on Saki and thinks of Nao as his own son. He is strongly in favor of Nao and Saki's marriage.

Saki's mother; a kind woman. She views Nao favorably and thinks of him as her own son. She is strongly in favor of Nao and Saki's marriage.

Nao's best friend and the heir to the Ninomiya Zaibatsu, the world's second-largest conglomerate. He is kind and popular, though not quite as much as Nao. He supports Nao and Saki's relationship. Akira has a fiancée named Aoi and is deeply in love with her. Nao's family and Akira's family are close enough to go on trips together.

Akira's fiancée and Saki's best friend! She cheers for Nao and Saki!! She is also deeply in love with Akira!! The only daughter of the Saito Zaibatsu, the world's fourth-largest conglomerate, she is highly adored. Nao's family and Aoi's family are on very good terms.