@IM THE REAL daddyAND I GOT BIG DIG erm i don't really remember when they confess to each other but I think it was somewhere near the ending or almost near the ending. Yes, there is drama.
Spoiler!
I think the drama was about him having a brother or I think it was his twin that also looks like ml and after mc found out about it because ml answered mc's question that if he had a twin or not and ml said yes. Now the ml regrets saying that because he thinks that mc will chase after his other twin because the person mc is looking for is not him (but it is him)