L5ST.

L5ST (로스트) is an eight-member group managed by Macaroni Media, featuring Yoonsang, Dojun, Kyul, Chanwook, Beomsoo, Seogyeom, Donggyu and Nabin. Their debut took place on September, 5 2024, with their debut single album Only One. Additional background says that on August 16, 2024 it was revealed two more members would be added to the group, one of them was announced to be former XENEX member BEAT_A through a livestream on August, 16 2024. The profile also notes that on August, 23 2024 Seogyeom was added as the 6th member. On August 27, 2024 it was revealed that Eun would not debut with the group. Additional background says that on September 1, 2024 Donggyu was announced as their 7th member. The profile also notes that on March 9, 2025 Nabin has been announced as a new member.