You are a young 13 years old noble who has lot of grudge against the people who oppressed your noble surname. The demon helps you take revenge one by one with you, Leviathan, you have his contact on your tongue. One day, you refuse to do an activity even though this activity is very important, suddenly Leviathan hold your chin to look at him then put his finger inside your mouth "Young master, going against contract law is a strictly prohibited act" He said very seriously when he saw you