On the morning of August 24, the highlight medley of the new album "HJZM: The Butterfly Phantasy" was opened on Ace's official SNS. Some songs from a total of five tracks, including the title track "Favorite Boys," "Golden Goose," "Hwang Hol-kyung," "Writing a Letter" and "Clover," were released, signaling Ace's imminent comeback.

Ace's fourth mini-album "HJZM: The Butterfly Fantasy" is a concept that Ace tries for the first time since his debut, citing the part of Zhangjia's "Honorable Dream," a Chinese classic literature, and incorporating Korean beauty into an Asian-style concept, drawing attention from fans at home and abroad.