Saikyou no Shienshoku "Wajutsushi" de Aru Ore wa Sekai Saikyou Clan wo Shitagaeru

Young Noel is the grandson of the empire's mightiest hero, and promised his dying grandfather to become the world's greatest Seeker. But Noel has been assigned to the weakest class of Seekers: a Talker, whose only skill is to enhance the abilities of others. How can he possibly find glory with only support skills? By being ruthless with them! Good, evil, it's all the same to Noel as he manipulates his allies, controls his friends, and outfoxes endless monsters from the deepest Abysses. Noel will stop at nothing to grow strong enough to save the world — and dominate it!