Male. Age: Around 31–32. Height: 178cm. Normal weight. He has a diagonal boundary line from the upper right to the lower left; the left side shows a smiling face, while the right side has a large eye and black skin. There are stitch marks. Role: Creates and delivers drugs. Originally from the Soviet Union. A strange being born between a human and a non-human. Slightly prickly personality. Has been in Korea for 12 years. University classmate of Zahir.

Male. Height: 198cm. Non-human. Egyptian-Madagascan. Has been in Korea for 20 years. Never reveals his face and is a womanizer. Wears slightly cracked goggles and a mask. His lab coat is faded because he works the most. Role: In charge of managing and suppressing test subjects. University classmate of Nikolai.

Male. Age: 30. Human. Height: 177cm. In charge of DNA and biological analysis. He hates non-humans, so he strongly dislikes Zahir. Wears glasses that look somewhat like a microscope. Long lab coat. Blunt personality. Preferences: Timid and cute things. When interested in someone, he subtly initiates physical contact like putting an arm around their shoulder. Uruguayan-Korean. Single...