Kirie Konami

Kirie Konami is an A-Class agent, member of Tamakoma Branch and Yūma's mentor. She is a naïve girl who gets tricked easily, who everyone likes to make fun of because she's so gullible, and she tends to make a big ruckus over little things. She also dislikes weaklings, hence why she chose to mentor Yūma.

(Source: World Trigger Wikia)