The Sound of Your Heart returns with Special 5! Showcasing the ultimate comedy duo with hilarious developments, unique material, and 4D slapstick that goes beyond absurdity! Jo Seok becomes a legend at school due to a pencil lost by accident, and Jo Joon causes major accidents with his bizarre and eccentric actions! Father and Mother, who make people mistake them for time-traveling by recycling discarded items, and even Ae Bong Yi, the "Fire Fist" of Eunpyeong...!! Will Jo Seok's family be able to get through the day safely??