Joy of Life: Rebirth of the Second Prince, Inviting Emperor Qing to Die

When Li Chengze woke up, he found himself in the body of the second prince with the same name and surname as in "Joy of Life".
Fortunately, you can carry a check-in system with you, and you can get rewards as long as you check in at a specific place.
Sign in to the Nanqing Palace and be rewarded with the guard 'Sword God, Li Chungang'!
Sign in to the Jingshi Bookstore and get the reward of 'Poisonous Scholar, Jia Xu'!
Sign in to Nanzuixianju and get rewarded with 'Luowang and Three Hundred Dead Soldiers'!
Sign in to the Northern Pacification Office to be rewarded with Shen Lian and eight thousand Jinyiwei!
Sign in to the General's Mansion and be rewarded with the great general Ma Chao and 100,000 Northern Liang cavalry!
The rewards after signing in include not only people, but also elixirs, skills, weapons, etc.
……
In order to change the miserable fate in the original novel, Li Chengze began to fight back step by step with the help of the system's power.
Since Emperor Qing wanted him to be the prince's whetstone and was finally abandoned, he would just break the knife and become the emperor himself!
Years later.
Li Chengze brought ten grandmasters, one hundred ninth-rank masters, eight thousand Luowang death warriors, and one hundred thousand Beiliang cavalry, and marched to the city, pointing their swords at the palace.
At this moment, the whole of Nanqing was boiling!
Emperor Qing: "Rebellious son, what are you going to do!
Li Chengqian: "Second brother, I am the crown prince, do you want to rebel?"
Li Yunrui: "Li Chengze, you actually betrayed me!"
But Li Chengze scratched his ears and said innocently:
"What are you yelling about? I don't understand a thing!"