Ceratioidei; Cholong Agwi; Глубоководный удильщик; 초롱아귀.
After a classmate mysteriously fell to his death 10 years ago, Haechan suddenly left without a trace. But one day, Suhyeok is sure that he has seen Haechan again! The secrets behind an unsolved mystery begin to unravel. What is the truth?