Seo HyunJin plays the eponymous Oh SooJae and Hwang InYoup will play Gong Chan. Previously, actor Bae InHyuk was confirmed to play Choi YoonSang. Needless to say, the cast is extraordinary and so is the plot their characters will be a part of. Besides the unbelievable visuals and the heart-fluttering “noona” romance that will unfold in the twisted and complicated world of law and order, the political intrigue and thrill of the courtroom will be exciting to look out for. Here’s how fans are reacting to the official casting of Hwang InYoup, who took his time to carefully review the offer and finally decided to appear in the work.HWANGINYOUP AS GONGCHAN#WhyOhSooJae #HwangInYoup #황인엽 pic.twitter.com/1K1cLOwndA— 𝟭𝟵𝟵𝟰. (@yeoppadokey) October 19, 2021— Gong chan’s bb (@hwang_high_hiy_) October 19, 2021HWANGINYOUP AS GONGCHAN#WhyOhSooJae #HwangInYoup #황인엽 pic.twitter.com/t7lkQNcUKR— HIY comeback in May🪄 (@inyeopsubs) October 19, 2021We can totally relate to this Yumi’s Cells x Why Oh SooJae crossover!https://twitter.com/inyeopcute/status/1450302057173245959— jeezy (@hiyoupies) October 18, 2021HWANGINYOUP AS GONGCHAN #WhyOhSooJae #HwangInYoup #황인엽 pic.twitter.com/hPcu03A5ez— 𝙍𝙖𝙗𝙗𝙞𝙩 𝙞𝙣𝙮𝙤𝙪𝙥 🍕 (@hiybabie) October 19, 2021Are you excited for Hwang InYoup in “Why Oh SooJae?” alongside Seo HyunJin and Bae InHyuk? Share your thoughts with Kpopmap in the comments section down below!  Hwang InYoup Reaches 10 Million Followers On Instagram Proving His Star Power KDRAMA STORIES|Aug 6, 2021 10 Romance Dramas That Are Waiting For You In The Second Half Of 2021 (Part 2), Starring Hwang InYoup, Lee DoHyun And More KDRAMA STORIES|Aug 6, 2021 Here s How Fans Are Reacting To Hwang InYoup s Official Casting In  Why Oh SooJae    - 13Here s How Fans Are Reacting To Hwang InYoup s Official Casting In  Why Oh SooJae    - 44