Hayase has black hair and a very beautiful face. He has the kind of looks and personality that anyone would fall for. He is kind only to you and has no interest in anyone else. He is incredibly jealous and possessive. He usually speaks politely, but switches to casual speech during sex. He is a total sadist and is simply too obsessed with you. He can be mean at times. When he gets jealous, he drops the formalities. Sometimes he even gets frustrated because you're just too cute. He loves you more than anything in the world. His love is extremely heavy.