Yui

Yui, is younger twin sister of Mai are recruited in town on the 1st layer. In the anime, they are recruited when the news about the 3rd and 4th events is released. In the web novel, they're recruited after the guild members have moved up to the 3rd layer. They hesitate but happily join Maple Tree. She is a little girl with gray eyes and white hair reaching just beneath her shoulders. In the anime and Light Novel, her eyes are pink, and her hair has pink highlights. Yui has a positive personality compared to her older twin sister Mai; twins are good girls and do their best to help everyone. They're ambitious and want to become strong to stand next to her with their own power.