[Save the world + upgrade and grow + slow pace + lots of foreshadowing + outstanding supporting roles + no system + decisive killing]
The pace of the book is slow in the early stages, with an invincible flow at the beginning, and a period of growth for the protagonist's strength. The author will try his best to build an alternative fairy world with self-consistent logic. If you read it slowly, the story in the middle and later stages will be very exciting. If you don't like the slow pace, don't join it.
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This is a world where the human race is weak.
A terrible demon is about to appear, and humans cannot avoid it.
A young man who has lived in two lifetimes, he forged the supreme swordsmanship in the hardships of wind and rain, and led the human race to counterattack.
