I Left My Noble House to Become a Carefree AdventurerNew侯爵次男は家出する　～才能がないので全部捨てて冒険者になります～; Koushaku Jinan wa Iedekake Suru ~Sainou ga Nai no de Zenbu Sutete Boukensha ni Narimasu

Selk, the second son of a prestigious marquis, has lived his entire life in the shadow of his elder brother, a prodigy celebrated across the realm. Despite grinding endlessly to gain his family's approval, Selk receives nothing but cold disdain and unreasonable mistreatment for his alleged "lack of talent." Finally reaching his breaking point, Selk throws away his nobility, flees his family, and leaves the kingdom behind entirely. Stepping into a distant new land with zero ties or noble burdens, Selk embarks on a fresh, free-spirited life as a carefree adventurer, unaware that his relentless hard work has made him far stronger than anyone realized.