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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!

GD meets Chef Anh Sung-jae, Korea's only chef with three Michelin stars. The two share parallel worlds as they pursue the path of music and cooking. Meanwhile, GD x TAEYANG x DAESUNG meet at TAEYANG's concert! Their fantastic songwriting meeting is revealed. And they even go on a star date with SEVENTEEN's sub-unit BSS, who admire GD.

Actress Kim Go-eun, who has captivated 10 million viewers with her movies! We discovered that she is GD's neighbor. From the delicious restaurants in Hannam-dong neighborhood to the second round at Go-eun's usual karaoke bar. Meanwhile, GD and the planning team visited the place where all the Good Day family members will gather in advance.

The members of Good Day have finally reunited! As their friendship deepens, they begin collecting donations by auctioning off GD’s favorite items, but what are GD’s favorite items that have become the target of fierce competition? Meanwhile, Aespa, the 4th generation’s representative idol group, and GD, an icon of the 2nd generation, have teamed up! What kind of chemistry will they display as the No. 1 senior-junior duo in the music industry?

Good Day's song has been revealed! What kind of music did GD choose to liven up the scene? The long-awaited recording day has arrived. From the true professional moments of producer GD, which are duly revealed, to the new members of the Good Day family, DAY6, who appear among the singers with unique personalities.

The last story of the 2025 Good Day Project. A sound source completed with the voices of the Good Day family along with the ear-pleasing live performances of famous song craftsmen! Meanwhile, the last couple of '88, GD X Kwanghee, returns to their childhood at an amusement park date! Even the best couple Hyung-don appears as if by magic? Their last Good Day unfolds.