ONF 2021 LIVE CONTACT :: CODE #1. [REVERSE]

[Reverse] is the first concert held by ONF. It was held across four days from December 9-12, 2021, at Yes24 Live Hall in Seoul, South Korea. [Reverse] is the first concert held by ONF. It was held across four days from December 9-12, 2021, at Yes24 Live Hall in Seoul, South Korea. [Reverse] is the first concert held by ONF. It was held across four days from December 9-12, 2021, at Yes24 Live Hall in Seoul, South Korea. [Reverse] is the first concert held by ONF. It was held across four days from December 9-12, 2021, at Yes24 Live Hall in Seoul, South Korea.