Technically, this was written when I was a teenager, and the next book is a continuation of that story.
(Light novel) (Not invincible) (Magic) (Fantasy) (Single heroine) (No routine)
This is the beginning of a miracle,
This is the story of a boy who becomes a king after being exposed to extraordinary things.
Raise the flag of resistance, let him flutter his wings, the swift-footed cat, wield the two swords in his hands, and tear apart all the enemies in front of him; make him silent, the savage bull of the rock, wave the sword in his hands, shatter the false world; you will see the visit of foreigners under the sun; you will see the nameless king crowned on the pile of corpses; you will see those who die and live towards death; at the end of the story, together with thousands of heroes, bear the fate of the world.
Worth a look, keep following it