To be honest..... I don’t understand...

The story did get a bit confusing haha
Basically, Yeonjin (uke)'s father needs Yeonjin and Yeonjin's son to take over company. Yeonjin and his wife plans for Yeonjin to take his own life later on to ruin his father's plans. Yeonjin's wife agrees to the plan because she was once saved by Yeonjin's mother (who killed herself previously because of Yeonjin's father).

HOWEVER... Moonhyuk (the seme) says he will prevent this unfortunate ending from occuring. [Perhaps, he will prevent Yeonjin from ending his own life]

Thank you