Tsuihou Sareta Tensei Juukishi wa Game Chishiki de Musou Suru

The Exiled Heavy Knight Knows How to Game the System

Born into a prestigious family of master swordsmen, Elymas Edvaughn’s future shatters when he awakens the so-called “defective” Heavy Knight class. Disowned and cast out, he regains memories of another life—and realizes this world mirrors a VR game he once mastered. Armed with knowledge no one else possesses, he sets out to rewrite his fate and prove the strength of the “weakest” class.<br>
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(Source: Crunchyroll)