G-Dragon, the icon of the era, returns after 7 years! He prepares a special music project. A reunion with the legendary duo Jung Hyung-don and Defconn, whom he first asked for help! From his famous die-hard fan Kian84 to his same-age friend, actor Kim Soo-hyun. GD's project and a wonderful day created with wonderful people, is starting!

The best actor in the movie industry, Hwang Jung-min, is a good older brother from the neighborhood? In GD's project, the reliable older brother Jung-min is the one who solves problems. Meanwhile, the all-time lineup of stars born in 1988 gather in one place. From self-introductions to first impression voting, you're not alone in the world of years 88, making friends in the excitement and tension that unfolds.

Will the perfect dinner with the 88th graders be a success? Will the 88th graders' karaoke time at dinnertime lead to an exciting encounter? Kian84 x Code Kunst x G-DRAGON reunite! They prepare a special item for the Good Day project in Kian's studio. Enter GD's comedy killer Hong Jin-kyung!