Failed an Awakening, He Got Secret Class "Boss", Now All Geniuses and Heroes Beg to Work For Him

What the story is about

After dying in his former life, Eton awakens in a world threatened by monsters and invading races, but is judged a failure when his hidden Boss profession has no rank. His unique ability lets him recruit talented people, upgrade their professions, and share their strength—so he sets out to build a team powerful enough to change the balance of the war.