Exiled Heavy Knight Knows How to Game the System (Omnibus) Vol. 3-4, The

DUNGEON DELVES AND VICIOUS VENDETTAS!
Sir Elymas continues his quest to prove exactly how useful a Heavy Knight can be, accompanied by fellow outcast Ruche. But this isn’t the game he’s used to–this is his reality, and there’s no respawning. Worse yet, his cruel father and the vicious Malice are eager to take Elymas on. A great city of adventurers beckons Sir Elymas and Ruche with promises of power…but only if they can escape the shadow of his father!
Series Overview: Nobody in this world wants to end up assigned a class like “Heavy Knight.” Nobody, that is, except for Elymas Edvaughn, who knows from his memories of a past life that the class is an absolute monster for those who know how to use it.
But the path of the Heavy Knight is particularly difficult in a society that doesn’t know the true strength of the class! Exiled from his family, Elymas sets out to game the system and show the world his true power!