âJust say the word, and I can make everything thatâs bothering you…go away.â Koo Hyo-seo is a new intern at âMarineâ, a marine research institute that studies sea creatures. After a difficult start to his new job, where he is constantly bossed around by his fellow colleagues, he is assigned to take care of a killer whale that everyone shuns because of its aggressiveness towards humans. For Hyo-seo, who has always been fascinated by killer whales, the aquarium with a ferocious killer whale feels like the only sanctuary from his otherwise lonely intern life. âWouldnât it be great if I could spend time alone with you, like this, every day…?â said Hyo-seo to himself while the killer whale listened. And just like that, people in the lab suddenly start getting injured or going missing. A mysterious man appears in front of a terrified Hyo-seo. âSo weâre alone now, huh?â Water-soaked jet-black hair, pale skin, sparkling eyes. Almost like… If a killer whale became a human, he would look like this. The man keeps lingering around the lab, never leaving Hyo-seoâs side… Who is this man, and what is going on in the lab? In a labyrinth of mounting fear and unknowns… âHow can I be an animal when Iâm standing next to you in human form?â Why do I become increasingly fascinated by this man?