Help, I've forgotten a shitty novel that leaves deep impression on me but I forgot the title. What happened is... The MC is transmigrated, he had system and travels world. The arc that I remembered was the ML thought the MC was his half brother, the ML is like angry to that family. They married each other and ML is using MC for revenge. They've got like artificial fetus? They were expecting a child and MC was urging the ML to visit their child since its good for the baby's health but the ML won't go so MC is going alone. Until ML made a move which the Mc's reputation collapse including their family. It was spread that MC and ml were brothers to the public. In the end the child is dead since it felt no love from the couple. The MC is asking why he did that. He didn't do anything wrong. During that time, MC was longing for the child until he got crazy and committed suicide after he found out they were never blood related.