Bongpil who has had a crush on Sujin for 28 years straight is shocked when he hears that Sujin plans a wedding with another man.

Sujin and her friends search for Bongpil. Bongpil accidentally time travels back to the past and meets younger Sujin.

Pil successfully returns to the past but realizes that his action has consequences for everyone, including himself. Unfortunately, Soo-jin remains adamant and continues to prepare for her wedding.

Pil is surprised to find himself at a beach, but Soo-jin and the crew also turn up for an excursion. Jealous that Soo-jin used to date someone else in the past, Pil decides to prevent anyone from ever dating Soo-jin.

Pil looks for the family who ran off in all directions. He soon discovers an unsettling fact about himself while talking to Gu-gil's father.

Pil takes over Suk-tae's body and has a deep, thoughtful conversation with Soo-jin. However, a sudden change occurs within Pil's body, and he must ride the manhole before midnight.