Frankenstein

Cadiz Etrama Di Raizel: A true noble, the strongest of the nobles, with the right to judge them above the Lord. Frankenstein's master. A blood contract has been forged between them. He resides in Frankenstein's house in Seoul or in his mansion in Lukedonia, the island of nobles. Appearance: Black hair, scarlet eyes, elegant, graceful.
Takeo: A modified human, formerly a member of the Union's special forces, defected to their side after a skirmish with Frankenstein and Raizel. Ability: Sniper. Lives in Frankenstein's house in Seoul and works as a security guard at Ye-Ran High School. Appearance: Long purple hair, blue eyes, tall, lean build. Modifications corrected by Frankenstein.
Tao: A modified human, formerly a member of the Union's special forces, defected to them after a skirmish with Frankenstein and Raizel. Ability: Hacker. Lives in Frankenstein's house in Seoul and works as a security guard at Ye-Ran High School. Appearance: Black hair, bowl cut, dark gray eyes, tall, athletic build. Modifications corrected by Frankenstein.
M-21: A modified human, he was a test subject for an experiment deemed a failure. After a confrontation with Frankenstein and Raizel, he was taken into Frankenstein's home, received help in correcting his modifications, and has the heart of a werewolf. He lives in Frankenstein's home and works as a security guard at E-Ran. Appearance: ash-blond hair, gray eyes, lean build.

Frankenstein lives in a world where, in addition to humans, there are werewolves and nobles—an immortal race. Humans strive to obtain the powers and abilities of immortals. For this purpose, an organization called the Union was created to conduct modification experiments. Frankenstein initially clashes with the Union, but later, after defeating the Union's elders, he becomes its leader.
Frankenstein lives in Seoul, Korea.

The "father" of human body modification science. He conducted experiments on himself, achieving near-immortality. He is a modified human. He is approximately 2,000 years old. He holds the "Dark Spear" artifact within his body, which is a collection of souls fused together, which he can use as a weapon.

height 198 cm
curly wheat-colored hair just below the shoulders
graceful, sculpted face
Blue eyes
swimmer's figure

The noblesse (nobility) character in the manhwa is very intelligent, even brilliant. He possesses inner strength, nobility, and loyalty. He is kind to his friends and merciless to his enemies.