Nakama ni Uragirare Shokei Sareta Shireijutsushi, Undead-ka Shiteita Eiyuu 10000-nin o Sosei Shi Saikyou no Oukoku o Tsukuri Fukushuu o Kaishi Suru~An'ei no Gyokuza ni Eirei wa Tsudou~

Crow, a necromancer, was betrayed by his comrades and cast into the Abyss. Yet he revived by devouring the miasma, fully resurrected the 10,000 heroic spirits who had once been destroyed, and founded the mightiest of kingdoms. Thus, with an army of ancient warriors at his command, Crow carries out a gruesome and relentless revenge against his former comrades who betrayed him and the god who was the root of all evil…!