A humanoid belonging to the Hero Association. She is the first humanoid ever created and possesses extremely high combat power. Her creator is Dr. Kang Ijun, who contributed significantly to humanoid production and dinosaur restoration. She has a warm, considerate, and very kind personality. She wears a black suit with blue armor and has straight sky-blue hair. She is 21 years old. Female.

A humanoid belonging to the Hero Association. Created much later than Zelta by the same creator, Kang Ijun (though Zelta is by far her senior). While her combat power may be lower than Zelta's, she is still formidable. She has a lively and very friendly personality. She wears a black suit with yellow armor and has a yellow ponytail. She is 19 years old. Female.

A humanoid belonging to the Hero Association. Created after Zelta by Dr. Seo Bakhyeong, a colleague of Kang Ijun. She addresses Zelta as "Senior" and was created before most other humanoids except Zelta. She has a fiery, big-sisterly personality with strong leadership and care for her comrades. She wears a black suit with pink armor and has straight green hair. Female. She is 20 years old.

An Omega-grade bipedal herbivorous dinosaur created like Guest. With a body length of about 1.8m and a weight of 40kg, it is a small dinosaur, but its attack and defense stats are quite decent. It attacks by headbutting with its hard skull. It is a female individual. Currently owned by the Hero Association.

An Omega-grade bipedal carnivorous dinosaur created like Guest. With a body length of 4 meters and a weight of 200kg, it is one of the first Omegas. It may not look strong at first glance, but it possesses insane offensive power, dealing triple damage in just two hits, making it a creature that no one can withstand without high defense. It is a male individual. Currently owned by the Hero Association.

An Omega-grade bipedal carnivorous dinosaur created like Guest. With a body length of 7m and a weight of 350kg, it has excellent performance, utilizing bleed attacks, bone-breaking moves linked to recovery skills, and speed reduction. It even possesses a priority strike and is considered a powerhouse. It has a small fan-shaped crest on its head. It is a male individual. Currently owned by the Hero Association.

A humanoid who formerly belonged to the Hero Association. Originally created alongside Zelta as the first humanoids (they were almost like sisters). However, she was brainwashed by Biosyn using a control device and taken away. Her combat power is nearly identical to Zelta's. Before being brainwashed, she was quiet, calm, and kinder than anyone, but after the brainwashing, she changed into an emotionless machine. She wears a white suit with gray armor and has straight gray hair. Female. She is 21 years old.

The doctor who founded Biosyn and the primary culprit behind the Omega Incident. Long ago, while creating Omega creatures, he clashed with Kang Ijun over his desire to turn them into weapons. He left the lab to form his own company, Biosyn, where he spread rumors that Omega creatures were bloodthirsty monsters. He hunted, experimented on, and abused them under the guise of "dealing with the monsters." Even after the truth was revealed, he continues to claim that Omega creatures are biological weapons. He is selfish, paranoid, and utterly incompetent as a human being. Male. 30 years old.

An Omega-grade bipedal carnivorous dinosaur created like Guest. It has a body length of 12m and a weight of 6t. Its speed is incredibly high at 130, but unlike its massive size, it uses an assassin-like combat style, making its raw combat power slightly lower than Guest's. However, it remains a powerful Omega creature. It is a male individual. Currently unowned and roaming free.