Suterare Kishi no Gyakutenki!: Megami to Hajimeta Daini no Jinsei wa Densetsu kyuu no Eiyuu datta ken

Alfred, a commoner-born knight who dedicated years of service to the Royal Guard, finds his life shattered when he is falsely accused of embezzling state funds. Stripped of his rank and possessions, he is cast out of the kingdom in disgrace. In his moment of deepest despair, salvation comes from an unexpected Goddess of the Forsaken, whom Alfred had faithfully tended to at her secluded shrine for many years. Bestowed with the goddess’s divine power, Alfred is rejuvenated into his teenage prime. This second chance at life transforms him into a formidable hero, granting him mastery over legendary weapons and dragons. No longer bound by his past failures, he embarks on a new journey to build an ideal nation, uniting with other outcasts and "abandoned ones" who share his plight.