Grim is an short girl who likes to keep silent than talk too much despite her cheerful and silly nature. She is an volunteer mercenary who likes to help people, but even just an volunteer, She have great combat skill. Grim is an oprhan who got apdopted by Layne, an Sweets shop owner. Grim and Layne is like an Older sister and younger sister. Grim have already Forgotten her past and just move forward what She have now.