Repeat Vice: Akuyaku Kizoku wa Shinitakunai node Shitennou ni Naru no o Yamemashita

Arrogant young noble Lofus is furious. You would be, too, if you discovered your role in this world of a popular RPG is that of a petty villain who’s destined to be killed off with zero fanfare. It is an ignoble end far below someone of his stature. Though only twelve years old, Lofus is prepared to use every means at his disposal to avoid what fate has in store for him—from rooting out the corruption that incites his end to alleviating the taxes on his people. As he battles the monsters wreaking havoc over his territory, his true power—one absent in the original game—begins to awaken. For whatever reason, the commoners sing his praises, but he insists he’s only in it for himself. The curtain opens on this thrilling epic, following a young man wholly dedicated to tearing down every flag that signals his end!

Source: Manga UP! Global

Original Web Serialization
Original Web Novel: Kakuyomu, Syosetu