Taming my Monster Girl Harem from Scratch - Chapter 419 Accelerated Time Room

Yuan Jia died early, and only after meeting the system did he know that his younger brother was the male lead, and he was the male lead’s cannon fodder brother.
Even if he is more talented than the male protagonist, how can he be more powerful than the male protagonist as a supporting role?
So he suffered a plot kill.
His business empire will be inherited by the male protagonist’s younger brother…
The connections he made will be inherited by the male protagonist’s younger brother…
The marriage date he set was inherited by the male protagonist’s younger brother…
And he is just the older brother who died young in the memory of the male protagonist. Take it out and remember it when you need it, and forget it when you don’t need it.​​
Yuan Jia’s goal is to work hard to live longer than the male protagonist’s younger brother.
As long as he doesn’t die, the male protagonist will always be just a younger brother.
World 01: [There is no eldest son of Houfu who died of illness] √
World 02: [There is no giant president who died in an air crash] √
World 03: [Nongmen Tianjiao who did not fall into the water] √
World 04: [Founding Emperor who was not robbed and killed] √
World 05: [There is no school god who died in a car accident] √
World 06: [Prince who was not deposed and poisoned] √
World 07: [There is no brother who accidentally fell off a cliff and died] √
World 08: [The true biography that was not plotted by the younger brother] √
World 09: [Cousin without plundering ability] √
World 10: [A powerful minister who was not framed for treason] √
…
2. Whether Yuanjia wants to marry and have children depends on the situation.
3. There are many kinds of male protagonists and younger brothers, there are dark villain male protagonists, and there are decent male protagonists of Guang Zhengwei…
4. Various types of routines, please pay attention.

Content Labels: System Fast Passing Through Books Shuangwen
Search keywords: Protagonist: Yuan Jia ┃ Supporting role: Pre-received new articles “White Eyed Wolf, I Don’t Love You [Quick Cross]”, “I am a gentleman of the male/female host [Quick Cross]” click into the column to see! ┃ Other:
One sentence introduction: I am not dead, the male protagonist will always be a younger brother!
Purpose: The protagonist must fight for his life with the sky and live a wonderful life.

- Description from novelbuddy

James, a brilliant mechanical engineer and passionate history enthusiast, loses his life in a tragic house fire—only to find himself in a mysterious world as the ruler of an island nation. Armed with his modern knowledge and unwavering ambition, James embarks on a bold mission to industrialize his kingdom and build an empire on which the sun never sets.

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.