[Invincible] [Main world: Cthulhu] [Infinite crossover]
[You can enjoy this even if you haven’t read the original works] [Infinite crossover with a JoJo-inspired protagonist]
In a parallel timeline, Blue Star is under attack from the Myriad Worlds and teeters on the brink of destruction!
Meanwhile, the conglomerates are torn apart by infighting, and their people are divided.
Li Ke, the second son of the Li Group, is targeted in a car crash and misses the once-in-a-lifetime awakening ceremony.
He’s lucky to survive, though he breaks his leg.
While bedridden in the hospital, he gets a call from the eldest son, who threatens him and boasts about Li Ke’s fiancée throwing herself at him.
Overcome with rage, Li Ke dies a pathetic death on the spot.
Fortunately, Li Ke from another world takes over his body and awakens the ‘World Ascension Plan’!
Enter the Myriad Worlds! Ascend worlds! Save yourself!
JoJo! Become a legendary vampire and awaken an invincible Stand! Make everyone a dragon!
One Piece! Master the Three Types of Haki and sink the world! No destruction, no creation!
Tease Tiga! Crush the apocalypse!
Make friends in One Punch Man, and take over Hueco Mundo!
My will is the Will of Fire, and my fists are the truth of Marvel!
…
By the time he reaches the pinnacle of power, he can look back and see that every hardship has vanished in the blink of an eye.
(What else do you want to see? Readers get to decide.)
As it stands, it's a pretty good fanfic.