Mongaku

When Yoritomo was exiled to Izu, he approached Yoritomo and showed him a skull of his father Yoshitomo. Mongaku is said to have proposed the revival of the Minamoto clan and the overthrow of the Heike clan. Since then, he has served Yoritomo. He is a brutal and cunning character, and basically does not stand in the public eye, but he has gained a lot of trust from Yoritomo.