The father of a bride sues a hotel for a wedding that ended in a humiliating disaster. Lee Joonho asks Youngwoo to share her whale facts over lunch.

Is Changho really Big Mouse? Gong Jihoon makes a bet with Changho to find out his true identity.

News about Hae-e leaves those around her feeling rattled. Haeng-seon begins to suspect something’s off. Chi-yeol confronts Dong-hui about his behavior.