Kuro no Souzou Shoukanshi Tenseisha no Hangyaku

Due to a gods mistake high schooler Tsuguna died before his time In exchange the god agreed to do him a favor in his next life Tsuguna is reborn to a noble household in a world with magic He has an unusual form of magic that he requested from the god the ability to create summoned creatures However his dark Japanese hair and eyes mark him as a cursed child in this new world and his powers are slow to appear Hes kept in a dark basement where he reads his familys books until one day he finally uncovers the key to his powers Finally he can set off into the world with his summoned companion to level up his skills