He was born in a very rich family but didn't really care about money and stuff. He preferred to study animals and monsters and take many notes, one day while going around he met a strange figure (Gaster) and ran off (not very important but i don car) When his parents died many people wanted his money and sh*t so he ran off to a near town. Once he got to a town (Hometown) he decided to go to the school for shelter, he talked to Toriel (since they the principle I thinks) and when she asked him about his parents he just said they were busy. How he met the fun gang/lancer fan club/ass squad: when Kris and Susie went to get the chalk he was sent to check on them after a while. He fell into the dark world with his notepad and studied the darkners as he went. He now lives in castle town as Raslei's (2nd) brother, going to school when he has to.
Weapon in light world: Half used notebook, Armour: worn out hat
Weapon in dark world: Large pen (can draw things into existance) Armour: lil' timmy hat