![](https://cdn.animecharacters.io/images/characters/large/33269-37a30bc3.jpg)
Tetsuya Ryuzaki (流崎 哲哉)
Rikiya's little brother. He is friends with Akie, and in the same preschool/daycare. He looks up to Red Ganbare even before he finds out that he's his brother. (wikipedia)
Voice Actors
Ikue Ootani
Japanese
Min Jeong Yeo
Korean