The Heroine is My Stepsister, and I'm her Final Boss - Chapter 403 - 401: I know

Horrible Accident? CheckOtherworldly Soul Yeeting? CheckTaking over some schmuck's body who died around the same time? CheckUnable to cultivate because the aforementioned schmuck's constitution is all messed up? Double CheckIn the world of Valresta where the great and powerful cultivate an energy called aether to get to where they are, Zhen Liu (Thomas Lee) is physically unable to despite having the qualities to do so.But due to a twist of fate, Zhen Liu is given the ability to create kaijin, strange and monstrous warriors to fight in his stead.By using this world's laws combined with his knowledge of Earth, watch as Zhen Liu stands above the so-called aether saints to become the one and only kaijin lord!“What the hell is a train”?!“Something that's about to kick your butt. Get him”!“Yes my lord”!

The person that Pei Zhen hates most in his life is the perfect Fu Sichen. Alas, life is full of surprises and unpredictability. One fine day, an accident turns Pei Zhen into Fu Sichen’s pet cat! As Fu Sichen’s pet cat, he makes a shocking discovery about his sworn enemy – a deep dark secret that the perfect Fu Sichen has kept hidden for years. Trapped in his cat body, Pei Zhen moves from one adventure into another while trying hard to find a way of turning back into his human self. When he finally does, the world as he once knew, has become a completely different place!

When the entire world learned of the future.Some worshipped me like a deity, while others regarded me as a demon!Some tried to persuade me to switch allegiances, while others prayed for me to trek the invincible path once more.Daoist magic, martial arts, prodigies, goddesses, demonesses, immortal emperors... they were merely supporting characters on the stage.And I still remained the center of the world!

Eight hundred years ago, Xie Lian was the Crown Prince of the Xian Le kingdom. He was beloved by his citizens and was considered the darling of the world. He ascended to the Heavens at a young age; however, due to unfortunate circumstances, was quickly banished back to the mortal realm. Years later, he ascends again–only to be banished again a few minutes after his ascension.

Now, eight hundred years later, Xie Lian ascends to the Heavens for the third time as the laughing stock among all three realms. On his first task as a god thrice ascended, he meets a mysterious demon who rules the ghosts and terrifies the Heavens, yet, unbeknownst to Xie Lian, this demon king has been paying attention to him for a very, very long time.

- Description from Novelupdates