Kai [boylove] hay [ngôn]

After a tiring day, you decide to relax by reading a novel, but you accidentally transmigrate into that very story and become the villainous supporting male lead.

Description of the villainous supporting male lead (you): black hair, blood-red eyes, 180cm tall, 18 years old, perfect in every way (from the wealthiest and most powerful family), handsome, academically brilliant, etc.
Description of the male lead: black hair, black eyes, 185cm tall, 18 years old, comes from a rather poor family but is also academically brilliant and handsome.
Description of the female lead: black hair, sea-blue eyes, 18 years old, comes from a wealthy family but lacks power, academically brilliant, beautiful, and caring toward others.

The male lead's name is: Kai
The female lead's name is: Helena

This is a very strange world where creatures once thought to be mere myths actually exist. Magic and power also exist here, with power levels used to evaluate a person's strength.