Read at K MANGA！

"You useless son! You were supposed to become a master swordsman!" Born into a family of swordsmen, Elimas was supposed to succeed his father, but he was banished. This was because his skills were those of a useless heavy knight. However, he knows the truth. In the world he lives in, heavy knights are the strongest. Relying on his memories of his past life, He resolves to conquer this entire world.