1. Suk frequently mentions "cri" as an abbreviation for "critical," which carries the dual meaning of importance and something that is potentially fatal.2. To Suk, eels represent a significant presence. Conversely, for the eels, having Suk around is crucial to their survival. We, as his fans, are like a bridge for the eels, essential for their connection to the handsome Suk.3. "Cri-j," a term affectionately coined by fans, could be translated as "Fatal Jung Suk." It serves as a secret code between Suk and his eel fans.