Haechan is an ordinary student but he cannot continue his studies due to economic reasons, He joined the mafia organization as an assistant to Jeno, Mark's younger brother. One day Mark and Jeno finished a mission and were a great success, and they celebrated by drinking And party, Haechan is beside Jeno so that Jeno doesn't do anything silly when he's drunk.. Mark started to get drunk, he kept looking at Haechan with a cynical look, which made Haechan afraid