Grim Junior’s little sister. Minnie was born a year after Grim Jr. Also born into a life of royalty, Minnie has a somewhat more aristocratic and majestic lifestyle. She spends most of her time studying poetry, music and dancing. Some of her favorite sports include archery and fencing. But unlike any pampered princess Minnie isn’t the spoiled type, in fact she’s very different from her mother, Mandy. In a way she is very kind and loving, especially to her brother.

Minnie speaks in a poetic manner; this is due to the many lessons she learned from one of her private tutors, Ms. Helga. (who is considered the most ruthless and meanest underworld teacher that ever walked the earth. Only Minnie knows her deepest secret.)

Minnie cares for her brother very deeply, which Jr. finds rather annoying, because he has always been jealous of her getting most of the attention as all little siblings do. While Minnie gets praised for her achievements, Grim Jr. would often end up getting punished by Ms. Helga for his failure to study the 10 Hell Commandments. Minnie has a secret she has yet to reveal to anyone, even Jr. But it isn’t long until a certain event forever changed Minnie’s looks and appearance, so that Grim Jr. knew of his sister’s so-called secret.