Dong-gu runs into problems while babysitting Han Sol. After hurting Seo-jin's chance at getting a journalism job, Jun-ki sets out to make things right.

Seo-jin and Jun-ki agonize over what happened the previous evening -- but for totally different reasons. Dong-gu comes to a realization about Yun-a.

Yun-a leaves Dong-gu with more questions than answers. Jun-ki hides from a UFC fighter whose girlfriend he stole. Su-a's undercover work pays off.

Jun-ki tries to view Seo-jin as a woman, but memories of her as a girl get in the way. A jealous Dong-gu challenges Song Hyeon-jun to a duel of sorts.

Su-a ropes Du-sik into helping her launch an online shopping mall. From a distance, Dong-gu spots his sister kissing a man, and demands to meet him.

Jun-ki and a co-worker compete to star in a commercial. Du-sik helps Su-a practice her driving skills. Dong-gu gets a lunch date with Yun-a.

While Seo-jin and Jun-ki secretly go on a weekend getaway together, the rest of the Waikiki crew visit another guesthouse to get ideas for their own.

When Dong-gu refuses to speak to his sister, she declares she's going on a shaving strike until he does. Hyeon-jun has something to tell Yun-a.

Dong-gu and Yun-a go on their first official date. A romantic declaration that Du-sik makes to a new Ukrainian houseguest gets lost in translation.

An obsessed fan begins to stalk Jun-ki. Dong-gu and Yun-a struggle to have their first kiss. Su-a gives Du-sik good -- and bad -- dating advice.

Su-a starts her own fashion line. Jun-ki is given a publicity stunt to perform -- involving a pole dance. Yun-a meets her idol, a rapper.

Sol's father begs Yun-a to forgive him. Seo-jin asks Jun-ki for time to reconsider their relationship. Su-a makes a confession to Du-sik.