could've been jae kyung who tried to kill him, but the doc and Jingoo's character saved him and staged his death? he did suffer a cardiac arrest but probably was revived like the ml?
my theory is that he's not dead! jingoo's character and the villain's husband probably saved the chairman from kang jae kyung! 😅 the ML also suffered a cardiac arrest like the chairman's body but he survived, the chairman's body probably survived too?
or what if he's still alive lol