Keiten

Keiten (케이텐) is the guitarist of hrtz.wav, the five-member band built through Mnet's Steal Heart Club and launched by Kakao Entertainment. He debuted on April 8, 2026 with The First Wave, entering the market with one of the most clearly defined musician profiles in the lineup.

Kakao's official rollout gave him unusual detail for a rookie instrumentalist. Keiten was introduced as a Berklee College of Music alumnus with broad genre range, and the company also credited him with helping name hrtz.wav. That combination matters. It places him inside both the sound and the identity of the band, not just the guitar position.

The debut cycle has already backed that framing up. Keiten's playing is central to the bright momentum of NINETEEN, and the band's first drama soundtrack, You Keep Me Here for Perfect Crown, showed how hrtz.wav could pivot from youthful rush to a softer, more melodic tone. For a new act still defining itself, Keiten already looks like one of the members most likely to shape its longer arc.