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!

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.

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.