Welcome Back! Seo Kang Joon Selesai Wajib Militer Hari Ini

Kemudian Seo Kang Joon semakin digaet dalam proyek besar yakni What's Wrong With Each Other (2014), Hwajeong (2015), Cheese in the Trap (2018), Entourage (2016), Are You a Male God? (2018), The Third Charm (2018), Watcher (2019), dan I'll Visit You When the Weather Is Nice (2020).