A new K-Drama’s second lead couple is stealing the show! JTBC‘s new romantic-comedy K-Drama My Sweet Mobster (also known as Woman Who Plays With), based on the web novel Playful Woman, is well underway. It stars Um Tae Goo (also romanized as Uhm Tae Goo) as Seo Ji Hwan, a mobster-turned-CEO who hires ex-convicts to…