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Kaiden - A mysterious ability user who hides inside the body of a street cat. He is later picked up by Jiwoo after being injured after a fight with another ability user. He has a stubborn and bossy personality. Jiwoo - an energetic and talkative high

Yu Ijin was the sole survivor of a plane crash when he was little. After becoming a mercenary to survive for 10 years, he returns to his family in his hometown.