Ace of Diamond: Narumiya Mei's Cousin!

After waking up, he traveled to the world of Diamond Ace, became Cheng Gongming's cousin, and was bound to the struggle point system.

In order to complete the system task and resolve the original owner's regrets, he began to understand Cheng Gongming and imitate Cheng Gongming in order to achieve the ultimate goal of surpassing Cheng Gongming.