Mage, Why Are You a Little Girl?

[Transformation] [No System] [Truly Invincible]

[Sword and Sorcery World]

The world's strongest mage, who has cultivated for five hundred years, is on the verge of dying of old age, and has only finished half of his research into a spell that restores youth.

His time is up, but even a half-finished spell is worth a shot.

Unexpectedly, he overdid it and turned into a silver-haired little girl.

Fortunately, he didn't lose his cultivation. I'm still the world's strongest.