Mayuko Nise

二瀬真由子

Nise was bullied and neglected by classmates and family alike. Thus, she learned to not trust anyone. This behaviour reached extreme heights when she reached this world, turning her into a seemingly cold-blooded killer, that is, until she met Yuri Honjo.

(Source: Tenkuu Shinpan Wikia)

(source: http://tenkuu-shinpan.wikia.com/wiki/Mayuko_Nise)

2