漆黒使いの最強勇者　〜仲間全員に裏切られたので最強の魔物と組みます〜 (Associated Names)

Shion, the ‘Hero of Darkness’. He was said to be the strongest hero ever. He believed one thing, and that was his current party members. “I’ll defeat the Demon Lord with this party!” That is what he swore to do, but a tragedy occurs. He was painfully betrayed by the girls that he trusted. He…