Kachin

Kachin is one of the Thai trainees in SMTR25, the public rookie-team rollout that SM Entertainment and Mnet turned into a real audience-facing pipeline with Reply High School and the 2026 single We Go Up. That matters because SM usually keeps trainees behind the curtain much longer. Kachin entered the conversation at the pre-debut stage with weekly screen time, live-event visibility, and an official music credit already attached to his name.

According to the profile set released for Reply High School, Kachin was born on August 3, 2007 and is from Thailand. That international mix is part of the wider SMTR25 pitch. The team was framed from the start as a multinational class designed to build fandom before SM locks its final debut lineup, which gives every trainee a clearer public identity than the old closed-door system.

Right now, Kachin's page is about trajectory more than volume. The signal is early but real: an SM trainee with official rollout materials, a broadcast platform, and a release already on the board. If SMTR25 converts its current momentum into a final debut team, Kachin is already in the lane where curiosity can turn into a measurable fanbase.