DxD: Scion of Lucifuge - Chapter 19: Wave of Tricks, Sona Falls into the Trap!

Oscar, a destitute young boy, died in a tragic accident and was reborn in the forgotten realm. As a member of the lowly Birch tribe, his solace comes from the fragments of a guardian's spirit, residing in his soul. After the decimation of his family in the hands of a powerful race known as the dreads, he embarked on the part of revenge, leading him to the path of transcendence.

Ai Qian, a street-crazy author who wakes up every day because of her own poverty, is bound by the system!
The system is obedient: Host, you are the daughter of a rich family, you are a billionaire female president, you are a superstar… Are you happy?
Ai Qian: Hehe, I might be happier if there is no hero who can kill me at any time.

- Description from novelbuddy

The first time I realized that I ‘couldn’t die’ was during a practical training exercise in my third year as a hero cadet.A beast suddenly leaped out of the bushes and tore into my neck.‘How did I come back to life?’Yes, I came back to life. I didn’t die.And now, after hundreds, even thousands of years, I was still alive. Only I had survived.“But now… it’s finally over.”After wandering for millennia, I thought I could finally put an end to this long existence…“Dale! Dale Han! How dare you sleep during my class? You’ve got some nerve, don’t you?”“…Huh?”But what awaited me at the end of my long existence wasn’t a period, but a repeat sign.

“Young man, I can tell from your skeletal structure that you have an extremely rare talent. You must be a one in a million prodigy in the martial arts. Now that the Blue Planet has ascended, mutant beasts are ravaging our homes, and foreign species are invading our land, our people are in grave danger. Here, I have an [Infinite Demon God Physique Training Method], I’ll give it to you for just two dollars. You shall be entrusted with the mission of maintaining world peace.”Xu Lingyun was touched. He said, “I can’t believe that you can actually see my true potential. Here’s four dollars, no need to give me change.”The scammer took the money, left him a fake secret training manual, and left feeling content.Xu Lingyun brought the secret manual home. He slapped the cover of the book. Instantly, the aged, tattered book started emanating a magnificent array of lights. An ancient and powerful aura filled the air, dominating the stars and piercing through the age.A fake?Oh please, in front of me, there is no such thing as “description may not match the actual item, please see the actual item”.