Is Downfall High based on a true story?

The little princess of the Huo family, one of the wealthiest families, was mistakenly switched out nineteen years ago! The fake heiress is well-educated, talented, and doted on, while the real heiress is an uncontrollable girl who loves to fight, has a strange personality, and had dropped out of school very early… In her previous life, Xing Jiuan’s biological parents found her and brought her home at the age of nineteen. However, the fake heiress, Huo Chulan, still seemed to be the one-and-only young miss of the family while she was hidden away in the shadows. Xing Jiuan spent her twenty-first birthday alone. She was ignored and disliked by her real family. She stepped out of her house for the first time after a long while to see the world. However, she ended up dead by the roadside. After her rebirth, she is once again standing at the door, staring at her biological parents and two elder brothers. But this time, she says coldly, "I don't need a family." Surprisingly, the Huo family starts to shower her with limitless adoration. Everyone says that the Huo family is penny wise and pound foolish as they retained the incompetent real heiress of their family and chased the well-rounded fake heiress out the door. However, only Xing Jiuan's parents and elder brothers knew that Jiuan is the family member that deserves their love the most.

After awkwardly dying in a heart attack, he found himself reincarnated as himself?! But with an additional twist! Is this the Shadow Clone Jutsu? ----- Author here! I don't own anything! Just saying!

Due to her disagreement that all nerd deserves being bullied Min Jinfeng a campus nerd decided to become a bully herself... Suddenly a man claiming himself that he's a king crosses her path... Wanted some revenge that man suddenly burst out to her classroom demanding that she became his wife... Jinfeng never had an idea that Jang Fanriu is a son of the most richest,popular and the most powerful family in their country... But Min Jinfeng bieng known as an evil nerd never lose some tricks up her sleeve...

Ray Smith, a former billionaire falls victim to a trap, crashing his plane into the ocean. Waking up he realized that not only was he reborn into the Marvel Universe but as the older brother of Wolverine. Being a near-immortal mutant, his life was passing by just fine and he was clearly waiting for the age of superheroes but why is there a guy dressed in a Batsuit? And what's that large Robot doing here? ---------------------------- The novel mainly focuses on Marvel, but a little bit of DC and other movie franchise mixed into it.

Zach died in a train crash and was reborn in a world he’d only read in books and seen in movies. The same world turned out to be less fiction and more hard reality than even his past boring life.