Sanshobo is a priest who once served in the army of General Ikeda. After a tragic incident where he lost the son of a friend (and his own son to purge the disgrace upon his family name), he left the army, changed his name from Konuma Inushiro to Sanshobo and bekame a bonze. These events are described in .

Althought planned as a one-shot character, his charisma and his sad karma, he quickly got his own group of loyal fans and Stan made him reappear in the Grasscutter story arc as well as at several other times.