The Indecent Octopus Tentacles Gene

So-jin discovers that Yeon-woo has a special scent that she's attracted to, so she decides to figure out if he's her DNA lover. So-jin meets her sister and mother to commemorate her dad's death anniversary at Kang-hoon's restaurant. The family gathering doesn't go too well, and they end up fighting. Yeon-woo, who happens to be at the restaurant, overhears So-jin's family's history.