The moment he locked eyes with that spirit (Jeokyo, 赤妖), running was useless. The atmosphere and demeanor were different, but the face was the same. "Who are you... You're not Han Nokgyeong, are you?" Rushing to the hospital after his father's accident, Cheonghae is confronted by the spirit, Jeokyo. Consumed by fear and feverish nightmares, he escapes home, where he is cared for by his roommate and secret crush, Nokgyeong. But Nokgyeong seems strangely different... "Now that I look closely, Hyung's lips look really delicious." Though suspicious of the sudden, radical change in the person he loves, Cheonghae cannot let go of the affection he is now receiving. He sinks into confusion. A dangerous supernatural entity possesses Cheonghae’s secret crush. Will Cheonghae's life be consumed by the "Deep Burning" love offered by the demon wearing his roommate's face?