A long time ago moonberry needed a job, so she signed up for a lab as a test subject.she was find none of the experiments were really that bad untell..they found out a new type of soul. a strength soul ( bage ) and as they did with the other soul types tryed to fuse some of the magic with a monster soul. and she was available.for the 1st fue days she was ok.very strong with superhuman abilities, but as days past the strength in her soul became unstable. and shifted into hate causing her to go insane and fild her with power. she blew up the lab.destroying her ear and killing most of the people there, and so she ran away trying not to get mad so she wouldn't hurt anyone. and ended up here. Sans found he rand tried to help her, she stumbled over to follow him.sans took good care of her