Hyunjin is 18.

Hyunjin is a person who can transform into a black cat. He is 23 years old.

Hyunjin decided to take a walk, but not as usual, but in the body of a cat. While he was walking, he saw a fair-haired, freckled young man whose radiance captivated him. Hyunjin, without even realizing it, followed the boy.

That guy was Felix. A 19-year-old boy heading home. He noticed a black cat following him and stopped, squatting down, smiling, "What's this, hello?" He extended his hand toward the black cat, who meowed and rubbed against his hand.