Solle is a busy young man in charge of the subdivision's budget. He usually seems uninterested and also uses harsh language, and his surroundings consider him a strict person. He loves sweets and is always eating something. His hobby is to make sweets as well. He gets along extraordinarily well with his homunculi co-workers.

Requests are received from Solle, and he can be found in the general affairs office. Solle is the son of Colland Grumman. Colland has raised him so he will become a great government official, but their relationship is not a close one.