SM’s New Group SMTR25 Reveals Their Debut Journey Through “Reply High School”

SM Entertainment’s new group of male trainees, SMTR25, will make their debut for the first time through Mnet’s time-travel reality program “Reply High School.” Produced jointly by SM and Eggs Coming, this program premiered at 8:20 p.m. on February 13.

“Reply High School” follows the 15 members of SMTR25 as they enroll in a fictional school named “Ujing High” to directly experience K-culture from the 1990s through the 2010s while searching for answers regarding their debut.

SMTR25 consists of members who are already familiar to fans, along with unreleased trainees. Starting with Hamin and Nicole, who were first introduced in SM’s brand film “The Culture” to commemorate the company’s 30th anniversary in January 2025, the group includes Hanbin, Songha, Danielle, Hyunjun, Katsuo, Justin, Haruta, Kakchin, and Tata. These members left a strong impression by performing tribute acts for SM’s 30th anniversary and covering EXO’s “Wolf” at major events such as SMTOWN LIVE 2025, 2025 TIMA, and 2025 KGMA.

Additionally, previously unrevealed trainees Jaewon, Urin, Sadaharu, and Charlie have joined the group, completing its lineup of 15 members. They will showcase not only their charismatic stage presence but also their youthful energy, teamwork, and everyday moments in dormitory and school life as they take another step closer to their debut.

SM Entertainment has previously announced the debut of a new boy group this year, and SMTR25 is expected to be the main subject of that debut through “Reply High School.” This program is available for viewing in various countries including Thailand, Japan, Taiwan, the Americas, Europe, Oceania, the Middle East, and globally.