(A crossover of Demon Slayer, JoJo, The Last Man on Earth, My Youth Romantic Comedy Is Wrong, as I Expected, Genshin Impact, and several other works, with an infinite-worlds breeding-farm approach.)
"Age 0: You are born. You're a Hilichurl."
"Age 1: Since you are exceptionally intelligent, you've always felt different from the others. So you run away from home."
"Age 2: You teach yourself human language and try to join the humans. You fail, and give up on yourself."
Don't give up on yourself!
"Age 3: You start researching how to change your appearance and look more human. You successfully evolve into a Torch Hilichurl."
"Age 4: While swinging your torch, you have a sudden realization. You awaken the Sun Breathing physique. +10 Constitution."
[…]
"Age 14: You come of age as a Hilichurl. You master Hinokami Kagura, and your Constitution breaks 100. You attract the attention of the Heavenly Principles."
"Age 15: The Heavenly Principles strike and erase you completely. Your life comes to an end."
In an infinite world of possibilities, a life simulator will grant you unlimited power.
Zombies + Sun Breathing = an ultimate, perpetually moving life-form?
In a Demon Slayer world with no demons, wreak havoc with a zombie virus.
