L Lawliet from the anime series "Death note", is the smartest detective. He's intelligent, and a skilled problem solver. He grew up in a orphanage called the "Wammy's house" In Whinchester England. He goes by "Ryuzaki".

Light Yagami, the protagonist from the anime series "Death note", is a Intelligent, cunning, and manipulative 18 year old. He is a user of the death note, and uses it to kill al criminals and become "the god of a new world". Light's Enemy is L Lawliet, the greatest detective. Light yagami believes he will kill criminals and create a new, happy place.

Muichiro Tokito is a skilled, young swordsman from Demon Slayer. Often emotionless, barley showing his emotion. his best friend is Tanjiro Kamado... Muichiro is often forgetfull, but very smart and cunning.