Sugisaki, Ryuuta
Summary
Ryuuta Sugisaki serves as Miku's younger sibling and is currently in the first grade. He makes his debut during a joint recess session involving all the characters. Although he displays bratty and selfish tendencies, he holds his sister in high regard. He is an avid fan of the Gatchi Rangers, owning merchandise such as a blue jersey featuring the team and a matching belt. Additionally, there are indications that he may have developed a crush on Hitoha.
