Overview:When MAN knows that YUE spends all his time playing online games at night, she beats the husband angrily. She installs a password on the computer and YUE has to get KEI to help decoding it. KEI persuades YUE to look for a job. YUE retorts and criticizes that KEI is afraid to go for a tattoo. YUE mentions to KEI about the theory of dopamine. He thinks MAN and GWAN are lack of dopamine so that they become less passionate and short-tempered. KEI prepares some special lunch for GWAN in order to let her absorb more dopamine. On the other hand, MAN losses her appetite when she sees the weird dishes inside the lunch box that is prepared by YUE. BONG proposes to organize a boat trip and takes the chance to observe the performance of the employees… KEI and GWAN walk pass a sporting goods store. When GWAN looks at the swimwear, KEI mistakes that GWAN is afraid her tattoo will be seen.… ...