At some point, he finds himself panicking when Woojoo is sick and heading out to meet Hyeon-jin so she won't get caught in the rain. It's strange. He doesn't know anything about family love... Especially since that woman is just an in-law who has been getting on his nerves since their first meeting! Why is he worried about her working late, and why does he care about some senior who was supposedly her first love? Why does he keep... thinking about her? Even though he hates waiting more than anything, Tae-hyung finds himself constantly waiting for Hyeon-jin.

Live together for a month? He'll help look after Woojoo if she gives him a room? Men and women shouldn't sit together so easily, and besides, they aren't even family, they're strangers! She should obviously refuse... She should flatly tell him it makes no sense. But... her body is so comfortable. Honestly, she wasn't confident doing this alone... The moments where she feels relieved to have Tae-hyung around are gradually increasing. Just like that, Hyeon-jin slowly soaks into Tae-hyung's life, bickering like family or perhaps friends, as they grow closer and closer.