Read manhwa The Imperious Young Lord / Overbearing Tyrant / Acımasız Soylu / パワハラする領主様 / 飞扬跋扈的领主大人 / 갑질하는 영주님
The year is 203X, and Earth is under attack. The enemy? Extraterrestrials. Park Hyunsung, a militia commander, valiantly lays down his life to take down the enemy base. One moment, he’s caught up in a malfunctioning teleportation device; the next… he’s in the body of Ian Alberon, a 15-year-old lord! Thrown into a world of monsters and magic, Hyunsung — now Ian — must figure out how to navigate his new surroundings. And to top it all off, it seems his enemies may be much closer than he thinks…