When I Reincarnated, I was a Mid-boss Who Died Early in the Game ―Survive by Becoming a Household Member with Heroine― is a Manga/Manhwa/Manhua in (English/Raw) language, REINCARNATION series, english chapters have been translated and you can read them here.
You wake up after an accident and are reincarnated as a middle boss who dies early in the game! In order not to be killed by the heroes who will eventually attack you, you must XXX and make the women your servants and gain more comrades! An exciting and inevitable otherworldly survival fantasy! (MTL) Novel description for more info (MTL): Toyo Akutsu unfortunately died in an accident, but the next moment he was somehow reincarnated in the world of a famous RPG as Ashnold, the weakest of the Four Heavenly Kings. At this rate, he will lose to the hero and die. Even if they were miraculously defeated, the heroes would raise their level and return. In order to survive, he has no choice but to use the forbidden bug technique “Betrayal Bug” to make the hero’s group his followers and control their bodies and minds. Will Akutsu (Ash) be able to subjugate all the heroines, build a harem, and survive the death event…?