I think one of the former Won's sponsors could be one of Seju's father's companies. And about her talking about her ex in the past, I think her problem with the drink was that there might have been an accident between the two of them, like getting drunk near the pool and her ex may have died of drowning (because she was too drunk) an alcoholic coma and she died .. I see it by her reaction when Seju teased to drown in the hotel pool.
PS: This is all theory of my head. hahaha and sorry for bad english
I think one of the former Won's sponsors could be one of Seju's father's companies. And about her talking about her ex in the past, I think her problem with the drink was that there might have been an accident between the two of them, like getting drunk near the pool and her ex may have died of drowning (because she was too drunk) an alcoholic coma and she died .. I see it by her reaction when Seju teased to drown in the hotel pool.
PS: This is all theory of my head. hahaha and sorry for bad english