Youtarou Rindou

Youtarou Rindou is a resident of Border's Tamakoma Branch. Youtarou is not shy, often does things he's not supposed to, and is prone to outbursts. He is puerile, though, as he believes Raijinmaru is a dog. Youtarou possesses a large amount of Trion, enough to trigger a Side Effect.
(Source: World Trigger Wikia)