It's about a MC who was found by the priest who was underground, covering the hole with bodies. The MC was adopted by the priest then later on after the priest died the MC followed his steps to become a priest also. But he has a power that he does not know nor realize about it. The MC was then taken by the knight(ML). Now this ML knows about the power which is why he took the MC with him to which the MC was naively in love with him. But the betrayal hits is what the MC thinks. The prince commanded to capture the person who possessed the power. The MC died protecting the ML. Now the MC was reincarnated as the PRINCE, the one who commanded. Also the ML despises the prince(before the mc was reincarnated).
Freakuinely this is the first time I've heard a brat role sub or tamer kind a thing