Jungsu

Jungsu (정수) is the main vocalist and keyboardist who gives Xdinary Heroes much of its melodic shape. Born Kim Jung-su on June 26, 2001, he sits at the point where the band's harder guitar language meets its emotional lift. That combination is a big part of why the group works. Xdinary Heroes can go loud, abrasive, and restless, but Jungsu keeps the songs singable.

He debuted through Studio J on December 6, 2021 with Happy Death Day, then became one of the clearest signatures in the band's early identity. His voice helped carry releases such as Hello, World!, Overload, Deadlock, Troubleshooting, LIVE and FALL, Beautiful Mind, LXVE to DEATH, and DEAD AND. The catalog matters because Xdinary Heroes is not built around a single novelty concept. The band has had to prove it can keep expanding musically while staying coherent, and Jungsu has been central to that growth.

His keyboard work also matters more than it does in many idol-band setups. Instead of functioning like a decorative layer, it gives the group texture and pacing, especially in songs that need a smoother entry before the guitars hit harder. Inside JYP Entertainment's broader roster, that has made Jungsu one of the clearest examples of an idol-era performer operating like a real band frontman. He is not just covering melody. He is helping define the emotional architecture of the group.