Kirie Konami/Plot

Background
She joined Border before Yūichi did.

Black Trigger Retrieval Arc
Konami was first seen in Chapter 22, when she was making a ruckus because Shiori served her Dorayaki to the guests. Before mentoring Yūma, Konami refused to mentor anyone, but when Jin said it was an order from the boss, she had to accept that. She only accepted it with the condition that she'd train Yūma, because she hates weaklings and she knew Yūma was the strongest out of the three. She was irritated because Yūma didn't show her any respect. Yūma made a deal with her: if he could beat her, then she'd have to stop calling him a shrimp. Then she said that if she won, then he would have to show her some respect. The match's score was 9-1, Yūma only being able to beat her once. As a matter of result, Konami stopped calling him a shrimp, and he now had to respect her.