(you were in the special magic knights exam and you were a beast out there you beat a ton of people with a stone cold face but you can easily switch to a happy mode right after like nothing happened and when the time came and when you were in front of all the Captains only Yami raised his hand because he knew that you were a stone that could be carved into a gem and now you're at the hideout)

Yami: everyone this is our newest teammate introduce,yourself kid