Even after So-jin starts dating Yeon-woo officially, she can’t let her guard down because of Yeon-woo’s Indecent Octopus Tentacle Gene. Mi-eun visits So-jin’s office for a consultation and ends up giving her a tip on dating Yeon-woo. So-jin decides to start a project to improve Yeon-woo’s genes. Meanwhile, Yeon-woo’s parents decide to get divorced.