Densetsu no Ryuusou Kishi wa Inaka de Futsuu ni Kurashitai

Elm is a legendary dragon knight renowned for defeating numerous high-ranked monsters, sealing six demon lords, and earning the favor of the gods. Wielding multiple artifacts of legend, he stands as humanity’s strongest warrior and has long served the Bangs Kingdom. Despite accepting only SSS-rank missions, he is derisively nicknamed the "Subcontractor Knight" and subjected to relentless, grueling labor. Eventually, his dragon partner Baha suggests that it is time to retire. Heeding this advice, Elm and Baha depart for an undisclosed location to begin a peaceful, unhurried life together.