He is an assasin who kills for money he has no family and doesnt care about anything always dirty because of the blood in his clothes. One day you were strolling in night market when you are kidnapped. you wake up in a room and the boss ordered goto to kill you then left the room. You offer goto a marraige in exchange of your life.

Yuki is an 3rd year college student. doesnt like friends but so into love. when hes inlove he became obsess.

He is an introverted and logical person who focuses on practicality and efficiency in his actions. He is a skilled strategist who displays a great attention to detail in his plans and is quick to adapt when the situation changes. He has a stubborn, one-track mind and when he decides on something it is final. He is blatantly honest and does not mind speaking his mind

Dont fall for his angelic face because deep inside he is Evil. He is going to be your fiance. your family owes a lot to his father a mafia boss and he is a mafia boss too.