Tachibana, Hiromi

立花ヒロミ

Hilary is a classmate of Tyson and Kenny, serving as the class president. She enjoys bullying Tyson, who refers to her as the "Wicked Witch Of The 8th Grade"; this nickname typically results in Tyson receiving a beating or punishment from her.
Initially, she considered Tyson useless, but after she and Kenny were kidnapped, she realized he was not as bad as she had expected. Following this event, she began spending time with them.
At first, she was unable to see bitbeasts, which frustrated her immensely, as well as the guys.
She and Tyson argue frequently, yet they are also close friends. She serves as the team's coach. In G-rev, she becomes their assistant coach, with Hiro taking the head coaching position.