The Ossan Newbie Adventurer, Trained to Death by the Most Powerful Party, Became Invincible

新米オッサン冒険者、最強パーティに死ぬほど鍛えられて無敵になる。

Orichalcum Fist is remembered as the strongest adventuring party the continent has ever seen, and Rick Gladiator spent two years as its apprentice, drilled by its S-rank members to the brink of death. When he finally sits the adventurers' guild's rookie exam at thirty-two, he registers as an E-rank beginner carrying the raw strength of an S-rank veteran, which is not something the people he meets are prepared for. This light novel is the original source for the manga.