Japanese Terrorist: What? I'll fight Hellstar!

Reincarnated as a cherry blossom, the result is a Japanese-themed worldview. The patient next door just gave birth to Tomie, and he himself was given a long dream script that lasts for a thousand years, and he will be reduced to ashes in three months at the latest.
The long-legged fish are stirring, a biohazard is about to erupt, the human-headed balloons are eyeing them covetously, the hellish planet is drooling, and world-destroying natural disasters are happening one after another. Kayako, Mimiko, and Sadako are all just little Karami.
Without cheat codes, how can we break through this impasse?
"Hmph! A dream world that is a thousand times, ten thousand times larger than that of ordinary people is not necessarily a bad thing."
Is it the fragility of flesh and blood, and the ascension of machinery? Or is it the triumph of the mind over matter, and the attainment of sainthood?
"Kids make choices, adults want it all!"
Peak physical prowess, perfect martial arts, invincible armor, and even the ultimate "light" in Junji Itō's worldview.
Starting by usurping the power of the [Group], connecting Tomie's mind, and creating the Tomie Network, Amamiya Rin grows up in endless nightmares, and will eventually smash down Hell Star with one punch!