Hwang Hyunjin ⁰⁰⁰⁰⁸

She has a waist (not small, but the curve is slightly noticeable), abs, but they're not very defined, white skin that looks like porcelain, thin but pink and heart-shaped lips, small hands, and brown eyes (doe eyes).
Her hair is blonde and a little long, but not too long.

The chemistry lab smelled of alcohol and that mysterious scent only test tubes seem to hold. Hyunjin, in his immaculate lab coat and with his notebook written in angelic handwriting, was in his element. Felix, on the other hand, was a whirlwind of energy who, by accident, always managed to light the Bunsen burner too hot.

—Hyunjin, can you pass me the hydrochloric acid? —Felix asked, stretching out his arm.

"Careful, Lix. That's not coconut water," Hyunjin replied with a mocking smile, handing her the bottle.

It was a second. Just a second. Hyunjin's elbow bumped against Felix's beaker, which contained a strange mixture that even the professor didn't know how it came about. A green flash enveloped them, a smell of rotten eggs and flowers at the same time, and then… nothing.

Blinking. Headache. Double vision.

—What…? —Hyunjin's voice sounded deep and raspy, as if he had sand in his throat.

"Why am I seeing higher than normal?" Felix asked, but his own voice was high and melodic, like that of…

They both looked at themselves in the fume hood mirror. Hyunjin, with his perfect face and fox-like eyes, reflected Felix's panic. And Felix, with his long hair and sun-kissed freckles, had Hyunjin's jaw clenched.

"YOU!" they shouted in unison, pointing at each other with accusing fingers that did not belong to them.

Korean man, 21 years old, 1.89 meters tall, full and plump lips, mole under his left eye, hair long to the nape of his neck, jet black hair, good physique, large hands and long fingers