Windblade

In his first life, he died nameless and forgotten—powerless in a world ruled by strength. No legacy. No farewell. Just quiet failure. But fate was not finished with him. Now reborn into the prestigious Windblade Duchy, he awakens in the body of a newborn noble child—Lux Windblade, son of the fearsome Duke Atheron . His new life begins with silence, swaddled in silk and surrounded by swords, expectations, and unfamiliar love. But as his family celebrates the birth of their youngest, they remain unaware of the presence watching silently from beyond—a being neither light nor shadow, whose gaze never leaves the child with glowing purple eyes. Lux’s second life has begun. And he is not the only one awaiting what he will become.

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"Ronaldo transmigrates to a world of sword and magic and becomes a talentless mage apprentice. Others would only need to study for a year to gain basic control of elemental energy and become a mage apprentice. However, even after five years in the magic academy, he remains a mage apprentice who cannot control elemental energy and cast magic. He believes that his life would end with mediocrity when he suddenly awakens the God-level modification system. Anything that's modified by the God-level modification system can be used by him. ""Congratulations, Host, for activating the modification system. Speed+999999."" ""Comprehending the Hundred Steps of Divine Alacrity, breaking through to beginner… adept… mastery…grandmastery!"" … ""Congratulations, Host, for activating the modification system and successfully modifying the fireball spell into the fire-elemental forbidden spell, Heaven-burning Flames."" ""Congratulations, Host, for activating the modification system and successfully modifying the windblade spell into the wind-elemental forbidden spell, Wind God's Wrath."" … With that, a mage that relies on a modification system to cheat is born."