♂protagonist
Setting: fantasy western monarchy, magical world and creatures
Add'l theme:
He regrets that the magic he focused on was not his talent (?) Aka he'll be surpassed... So he went back to his childhood to do it over, aka regression
♀protagonist
Setting: fantasy western nobility system influence, magical world and creatures
Add'l theme: villainess, changing the flow of fate, otome game-like development, features and events,
Haven't read yet
Regress till the old witch trials where still rampant
The Mage Will Master Magic Efficiently In His Second Life