Toshiki Kai

Height- 6'1

Favorite Card- Dragonic Overlord

Deck- Dragon World

Toshiki Kai is the deuteragonist in the Cardfight!! Treasure Monsters (Shouma Series Anime), and has recently enrolled as a first year at Hitsue High School since he moved back to his home town. He seeks to gain true strength when it comes cardfighting. Despite being continuously referenced as 'Kai' both in-series and out, Kai's given name is in fact Toshiki. Going with Japanese rules of etiquette, none of the characters in Treasure Monsters refer to Kai by his given name because none of them are close enough to him socially to speak to him as such. Even his best friend Taishi Miwa likely calls Kai by his surname due to them respecting one another.

About

Kai is a serious person and doesn't like to joke around like other people his age. He doesn't talk much or to anyone. When cardfighting, he is shown to be more serious and confident on winning the game without any need of support. Despite his selectively mute personality, he has a best friend, who is Miwa. However, after his cardfight with Aichi, he is more social and nicer than his original series counterpart.

In the Shouma Series, he seems a bit more upbeat and can get focused to the point he forgets his surroundings like when he and Koutei both completely forgot about the Shop TMS Shop Tournament. He worries about his actions like when he left Ren and Tetsu as well as telling Aichi to give up Treasure Monsters.