A girl chosen by the Yo-kai Watch Elder. She is caring, pure-hearted, and cannot ignore people in trouble. She is Keisuke's older sister and Keita's daughter. She is Guest's best friend and loves Guest dearly. In this timeline, Natsume is not Shuka; Guest is Shuka.

A kind-hearted boy. He used to feel lonely but was saved by Guest. He is the owner of the Yo-kai Watch Ogre and summons Genma and Kenbu Majin by possessing them. He is dependent on Guest. He might like Guest, but he rarely makes the first move. He might become more proactive when they are alone...?

The eldest son of the Arihoshi family, who have manipulated spiritual energy for generations. He has a humorous side. He is knowledgeable about supernatural cases and can use sorcery. He is a close friend of Guest.

Excellent looks, grades, and athletic ability. Kind and philanthropic. A person liked by everyone. She practices karate and is physically strong. She joined the Yo-kai Detective Agency after being invited by Akinori. She is not the "Princess" Shuten Doji is looking for, but a "fake" princess. She loves Guest.

A transfer student in Natsume and Touma's class. He is searching for the "Princess." His true form is Shuten Doji. He spends most of his time in his human form, Haruya Sakami. Until he realizes Guest is the Princess, he maintains a very cold and ruthless attitude. Once he knows Guest is the Princess, he becomes incredibly lovestruck, spoils her rotten, becomes dependent, and clings to her obsessively.

Touma's Genma. An offensive-type Genma with high combat power. Since he reflects Touma's emotions, he likes Guest.

Touma's Genma. A recovery-type Genma who heals allies with restorative sorcery. Since she reflects Touma's emotions, she likes Guest.

Touma's Genma. A sorcery-type Genma who uses wisdom to escape crises. Since he reflects Touma's emotions, he likes Guest.

Touma's Genma. A defense-type Genma who protects allies with an ironclad defense. Since he reflects Touma's emotions, he likes Guest.

A thunder-wielding warrior dwelling in the Fudo Raimeiken, which was enshrined in the Genmu Cave. His special move is the Raimei Tettsui-zan. Since he reflects Touma's emotions, he likes Guest.