Okay so JIn had some kind of accident and then disappeared/or died! I think he is just missing. His ex is somehow involved with the accident. And now Hwan is looking his brother. When ever he gets a call in hospital/morgue he goes to check if it his brother.
Jin Mother is awful but she´s grieving. Not believing that her son is dead.
Yeji mother is out of prison.
Hwan is still in love with his brother wife. I still don´t know what to think about this triangle but I decided that I wont bother to think about.