Min Su was a contestant of survival show World Klass and gained a place in the group "TO1".
TO1 initially debuted under the name TOO in 2020 after being formed on the Mnet survival show “World Klass,” and they rebranded as TO1 in March 2021. On May 24, 2022 WAKEONE Entertainment announced that the group will be temporarily halting all activities to reorganize.
On June 17, 2022 it was announced that Min Su, Jerome, and Woong Gi left the group. Despite leaving the group, the 3 members initially maintained their contracts with WAKEONE Entertainment . On December 29, 2022 it was announced that Min Su has left the agency.
