I really hate Reina bastard father but don't worry, Reina is surely protected by her guardian angels. MC reminds me of this manga Chiyu Mahou no Machigatta Tsukaikata, a healer battle
Something something Wrong Way To Use Healing Magic, but seriously, self-buffing yourself + battle Priest/Monk build has been a thing since Ragnarok Online.
Jokes aside i think this was okay
Probably going to get resolved the next chapter so little consequence
Question what the real goal of this story is aiming for besides the eventually marriage and controversy that will come of that
People being so surprised, but for half a century priests have been kicking arse for the lord in fantasy, it's called being a "Cleric" in Dungeons and Dragons.