Kurokami no Captured

Also known as: 黒髪のキャプチュード, Darkhair Captured, Dark Hair Captured

by Ryuusuke Mita

Captured, the only "black-haired" boy in the blue universe. A foreigner born from a woman other than the Holy Mother, the boy is rejected by the whole world, but he fights to stand up for himself with the power to summon a knight! (Source: Kadokawa, translated)