ASTRO's Sanha to make a comeback with the EP 'NO REASON' later this month

ASTRO's Yoon Sanha is officially set to return as a solo artist.

On May 5 KST, Sanha signaled his comeback by releasing the promotion scheduler and mood sampler for his upcoming solo project, 'NO REASON.' According to the timeline, Sanha will unveil two sets of concept photos titled 'Undefined' and 'Unbound,' followed by the album's tracklist, highlight medley, "after scheduler," and teasers for the lead single, "IDK ME."

Sanha's third mini-album, 'NO REASON'—featuring the title track "IDK ME" (an abbreviation for "I don't know me")—is slated for release on May 20 at 6 PM KST. This marks Sanha's first solo music release in approximately 10 months, following his mini-album 'CHAMELEON' released in July 2025.