I Reincarnated as the “Villain” Commander of an Order of Knights

Justin is the domineering, ruthless, and arrogant commander of the Order of the Knights whose very presence strikes fear in those around him. But he wasn't always like this—he actually used to be a college student in the real world who worked tirelessly to care for his 7 little brothers. Now, trapped in this light novel world, he must change his storyline, or he'll be destined to end in ruin due to his villainous deeds.

(Source: Seven Seas Entertainment)