Age: 22, 23 (Chapter 734), 25 (Chapter 1324), 31 (Circle of Inevitability)
Birthday: March 4th
Height: 172 cm (Debut), 180 cm (Current)
Likes: Cats, Money, Single player games, lampooning
Dislikes: Snakes
Quote: Even if it’s meaningless, some things still ought to be done.
Occupation:Nighthawk, Fortune-Teller,

Klein Moretti is the main protagonist of Lord of Mysteries and a major character in Circle of Inevitability. He is a Beyonder of the Seer Pathway. He is also the mysterious leader of the Tarot Club known as The Fool.

Klein Moretti is a cautious and good-natured person. He is humorous, polite, mature, and gentlemanly. Fundamentally a lover of justice, He will not hesitate to do what is right, even at a personal cost.

Since His transmigration, Klein has experienced a plethora of dangerous events and tragedies. Yet He still stands steadfast by his principles and the core of his personality as one who is cautious, upholds His own brand of justice when necessary, and does not involve or target the innocent.