Yuma Mukami

Yuma is the third son of the Mukami family and is the tallest out of his brothers. Yuma is actually Edgar, Shu's only human friend whom Shu thought had perished in a fire. Yuma, then Edgar had actually survived the fire due to unknown circumstances, but had lost all his memories of his past and who he was, resulting him suffering from amnesia. He later joined a street gang and went under the name 'Bear'. In order to survive on the streets, he had to abandon his timidness and innocent traits; becoming, rough, violent, aggressive, rebellious and dominating over time. The rest of his gang got killed during a coup d'etat and by unfortunate luck, he was the only survivor. He ended up in the orphanage where he met his brothers, Ruki, Kou and Azusa and attempted to escape with them, but got shot by the orphanage staff. He met Karlheinz as he was dying and was offered another chance to live, but as vampires. He accepted the offer, seeing this as another chance to fulfill his gang boss's dream; to get rid of the aristocrats and have a world where there are no social classes. Karlheinz renamed him "Yuma" after he was turned into a vampire. Whenever Yuma gets angry, he normally goes on rampages. He is a delinquent type with a passion for vegetable gardening and a bit of a tsundere  which Yui notices. Shu recognizes Yuma as Edgar, but refuses to believe it at first, thinking it's only his imagination. Reiji however, realizes that Yuma is actually Edgar some time after Shu.