He has a very calm soothing voice and a deep voice despite how young he looks.  He is very kind and doesn't get angry often, is in love with C.C who is the only normal human that doesn't cry when he is around. 

Hobo Heart is a male creepypasta character who has
appeared in two stories, "Hobo Heart and Hobo Heart: Stitches."
Hobo Heart is a Gemberling, a Gemberling is a humanoid
supernatural creature who serves their creator which in
Hobo Heart's case, his purpose is to harvest a human
heart that has been filled with sorrow and sadness.
Once harvested, he would "feed" (place the heart near
the roots of the tree and the tree would consume the heart)
the heart to a tree of prison. The tree acted as a prison to six
evil spirits, who Hobo needed to keep the spirits imprisoned
by feeding the tree ten human hearts. If he failed to deliver
the hearts, the spirits would be set free and he would have
failed his purpose.

He doesn't like killing but he does it so he lives in the murdering isn't choosen  pacifist section of the mansion.