Lee Yeon-su suddenly finds himself inside a dark BL novel—not as the main character, but as a side character destined to die out of jealousy. Determined to survive, he avoids the obsessive seme, Joo Seung-hyuk, and tries to stay far from the original plot. But instead of being forgotten, he becomes the new object of Joo Seung-hyuk’s obsession. An S-rank esper with a perfect face and a terrifying personality, Seung-hyuk won’t let him go. All Yeon-su wants is a quiet life, but the more he resists, the more dangerous Seung-hyuk’s obsession grows.