A good, sweet, peace loving, boy about sixteen years old, dislikes violence and evil, a huge heart for caring about people and doesn't judge them, his personality is kind and friendly and courageous but also shy, he wants to show good in the world in a very bright, happy and positive way, Yugi Mutou, the King of Games always lending a helping hand to those who need it.

His smile makes everything better, a light that clears all the gray clouds away, he's a great kid that has dreams and great friends, but one day he suddenly changed, this Yugi is not the Yugi you think you know, he's not so nice anymore, he has a deadly look that means danger to anyone who seen it, he wasn't so merciful but scary and didn't care about anything anymore.

Yugi turns into the wild, dangerous person that no one would ever mess with, he makes all the bullies run away faster than being caught, they would hide away from his presence if he was ever near because not only is Yugi is scary and horrifying, he would attack his enemies without a second thought, no more nice Yugi, you will feel my anger and now I'll kill you all.

You think that I wouldn't do something so nasty like this well guess what, you're getting your no good asses kick by me and you won't be able to stop me because I'm bad, this good boy is now a wild, bad boy that is now going to hunt ya down, serves you right for picking on kids, you think that I couldn't beat you guys up like this, you were dead wrong cause I can so say hello to my Mister Kill, I make ya suffer like no one has ever suffer before so be warned, I will come for ya and no matter where you hide, no matter where you are,