Mark has lived at an orphanage for almost his entire life. He likes making small robots and doing experiments. Aside from Alice, all other kids at the orphanges think he's strange and some of them relentlessly bully him.

He's a curious young boy who wants to learn as much as he can about everything an wants to be an inventor when he grows up. He has poor social skills and his only friend at the orphanage is Alice (Whom he considers his sister). He can be a bit oblivious when it comes to other peoples feelings.