The Sound of Your Heart: Reboot : Season 2

With their daughter Yul-bong at home, Seok can hardly concentrate on his work and decides to work in Bu-ook's car where he gets stuck.; Ae-bong's mom gets lasik surgery and is unable to see following the procedure. Seok takes her around on piggyback for the next few days.

Cheol-wang and Ae-bong's father both want all of Yul-bong's attention and start a battle armed with limited edition toys.; After giving birth, Ae-bong goes on a diet but somehow ends up gaining even more weight.

A Seok impersonator is in town. Seok starts a battle against him.; Joon starts dating a cop. People mistake him for a criminal when they go around town while she's in uniform.

Worried that Cheol-wang is going through male menopause, Seok and Ae-bong set out on a mission titled "You are the protagonist of your life!".; Wearing an on-trend T-shirt, Seok bumps into a bunch of guys wearing the same and finds himself in a lot of awkward situations.

Tired of babysitting, Seok and Ae-bong try to reignite their romance and go back to their honeymoon phase.; Trying to avoid the upcoming family cleaning day, Seok, Joon, and Cheol-wang attempt to get a cold by any means.

Joon has to take care of Yul-bong for a day by himself. When Yul-bong goes missing, his frantic search begins.; Fueled by a sense of justice, Ae-bong's father gives Seok, Shin, and Bu-ook special training to keep their neighborhood safe.

Ae-bong is getting irritated by her forgetful mom. Seok struggles to intervene between his wife and his mother-in-law.; Seok, Shin, and Bu-ook prepare for a cosplay festival without their family's knowledge. Their family mistakenly believes that the three are planning surprise parties for them.

Dressed in a cap and mask, Seok gets mistaken for Max, a famous idol singer, and a scandal with an actress ensues.; Pieces of Yul-bong's toy get stuck in Seok's body parts. Seok strides down the street with his honking ears.

Hospitalized with enteritis, Jung-kwon pretends that she's terminally ill to prank her sons. Worried that she will get even more depressed, however, Seok and Joon decide to play cool and act like spoiled kids as usual.; Getting a recruitment offer from other webtoon publisher, Seok disobeys his current agent whom he has a long-standing feud with, not realizing the offer is no longer valid.

Bothered by Ae-bong's mysterious male friend named Young-soo, Seok steals Ae-bong's cell phone which makes her believe that their house has been burglarized.; Yul-bong's first-birthday party, Seok and Ae-bong's wedding, Ae-bong's parents' wedding vow renewals, and Joon's "I-Will-Never-Marry" ceremony are all happening on the same day. The schedule gets messed up and all the plans go awry.