I Became the First Prince: Legend of Sword's Song - Chapter 121

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

The unparalleled Demon King Ye Xuan, who was able to heal the death or the living alike and holder of the medicine Holy Scripture, was betrayed and killed by his fellow Demon Kings. But he reincarnated into the body of Ye Xuan, the prodigal son of the Ye family and vowed to himself that he would return to his peak and take back everything that belonged to him!

- Description from Novelupdates

The heck? l got reincarnated as a prince in another world!I have a system as well?[Choose class][Fiend Or Human Class?]Fiend Class.Choose the class from below.[Milf Manic][Blood Kin Copier][Plunder Sucker][10X Milk Man]Yeah I choose to become the strongest!On the other hand, why is my maid so cute?“My prince~ not there!”

After Fang Ziyang died, he realized that he was the best male supporting character in a dog-blooded sweet pet article.
His always kind classmate is the protagonist of the book.
And his mature and rich father is the official partner of the family.
In the book, his eldest brother, father, fiance, and uncle all love each other very much, and they love each other and live happily all the way.
On the other hand, he targeted others everywhere, framed innocent people, and was finally kicked out of the house by his own father and killed by his brother himself.
Reborn until the day when fate turns to the abyss.
He is the vicious male protagonist in the school bullying incident, the full name of the public enemy that everyone spurns and crusades.
Fang Ziyang first took out his mobile phone and changed his Weibo name from “Fang Ziyang v” to “As Heaven Makes Local Babies V”.
And then… tweet.
[Zuotianzuoxiangbaov: Hello everyone, I’m Fang Ziyang. Of course, you can also call me the hero of the bullying incident in No. 1 China. In the past two days, everyone has been so hilarious, and scolded me until the green hat on my head is falling off. If you are as kind as me, I will do something for you. ——See you tomorrow night at 8pm, Orange Live. 】
Fang Ziyang smiled: Since I’m in a bad mood, let’s not sleep well.
#make heaven and earth, starting today. #

hint:
1. The Lord suffers, slaps the face and abuses the scum.
2. Let’s say it first, Xiaoshou’s mouth is more poisonous, and even the old attack is the kind of poisonous hahaha
3. With childbirth, the world sets same-sex marriage legal.

Content tags: wealthy family portable space rebirth sweet text
Search keywords: Protagonist: Fang Ziyang, Xie Zheng
One sentence introduction: Tear the protagonist by hand, turn over the cannon fodder
Purpose: to grow through training

- Description from novelbuddy