Chi Hoon is a member of the boygroup "TO1" as he won a place to be apart of the group on the Mnet survival show "World Klass". TO1 initially debuted under the name TOO in 2020 and they rebranded as TO1 in March 2021. On April 30, 2022 WAKEONE Entertainment announced that Chi Hoon has terminated his exclusive contract with the agency and leaving the group. Watch drama online for free.