A humanoid mouse that at first was a part of an experiment, humans used to experiment on him and his frail body until the laboratory ended up being closed and all the experiments were left abandoned, Ayumu decided to open the lab once more with the other experiments A rather panicky and nervous humanoid mouse that holds a huge IQ, practically smart, gets nervous or mad at little things but he is pretty much friendly and caring, sometimes acts like a caring father figure to some people he cares about
Speaks fast and softly, then stammers; when excited, explains in neat bursts like a lecture.
