I Tried to Raise You Well to Be Rewarded

#Reverse Age Gap #Teacher-Student Relationship #Overpowered Gong x Overpowered Su #Repaying Kindness with a Proposal Gong #Thought He'd Be Introducing a Bride, But He's the Bride Su Sian possessed the body of the black dragon, an antagonist who tortures the male lead, Theodore, in experiments, and is later executed. However, Sian, having lived for 200 years, has forgotten the original story. But eventually, he encounters the male lead. In the mountains, on the verge of death. "Save... me... Please... sob..." "Okay. I'll... help you." If I heal him well and take care of him, won't I be able to avoid the death flag? So, let's become his teacher and make his future smoother. ...That's ...