Dekisokonai to Yobareta Motoeiyuu wa Jikka kara Tsuihou sareta node Sukikatte ni Ikiru Koto ni Shita

A boy named Allen was unable to receive the gift of God's bounty, and called a failure. But his true identity was a former hero with memories and powers of his previous life!? Fortunate to have been expelled from his duke's family, Allen was trying to...