I've Ushered in The Era of Mythical Pet Beasts

The genius youth Lu Yu was stripped of his talent and cast out of his family. But when he awakens the Mythical Beast System, his fate takes a dramatic turn. After forming a contract with a world-destroying Demonic Dragon, he gains an SSS-rank talent and rises once more. As for those who wronged him in the past, he intends to make them repay every debt, one by one.