Making a harem after transmigrating - Chapter 67: Succubus queen... Isabella

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

The hero who was killed by the demon king ended up reincarnated as the son of the one who killed him! Thus began the life of the hero who donned in the mask of the ideal demon prince to topple his own kingdom while doing his best to prevent anyone from discovering his identity―― But to do that and blend into the demon tribe society, he had to kill his former comrades. Nevertheless, to become stronger, to save humanity, he had to walk through all kinds of paths of carnage! This is the tale of the demon race’s fake prince destroying his own kingdom.

O Hero, Trample Those Who You Should Protect!

TN: Most part of the other character in the novel is depicted from a non-human perspective so expect something that is completely different from the common sense of human.

Li Qingming: “Uncle Master, lend me your Purple Gold Eight Trigram Furnace to study alchemy!”Taishang Laojun: “...”Li Qingming: “Master, lend me your Pangu Banner!”Yuanshi Tianzun: “...”Li Qingming: “Uncle Master, lend me your Zhou Xian Sword Array for research!”Tongtian Jiaozhu: “...”Sanqing: “Qingmingzi, return my Eight Trigram Furnace (Pangu Banner, Zhou Xian Four Swords and Formation Diagram)...”Li Qingming: “Waga ga, let me study for a million years, then I'll return them to you!”

[Have you become more learned today?][Accounting for the capacity of your brain, your study efficiency has been increased to 28 times that of normal.][The remaining amount of energy you have for studying today, 26 hours.][You will enter an exhausted state when your energy is depleted and be unable to obtain new information.][Please relax by using the functions within the system and restore your energy as soon as possible.]With limited energy and the onset of fatigue, the Study Monster had no time to think too much--papers to come!Had the heavens not grant me this system, the unending sea of knowledge would seem like a long night.