MTL - American Manga God - Chapter 1 i am a stranger

In thus high-martial world, Lin Chen has a special ability that every seven days he traverses to the Cultivation Realm and comes back after another seven days.What's more, when he's in one world, the time in the other one is actually frozen.

After a vending machine accident, an otaku meets a deity resembling Morgan Freeman and is reincarnated as Eddard “Ned” Stark to save the Game of Thrones universe. To survive, he secures three wishes: usage of The Force (adapted to the Old Gods and Direwolves), intuitive civilization-building knowledge, and a 10x growth multiplier for training.

In the year 1368, at the end of July, deep crimson shall descend from the heavens.

- Description from Novelupdates

After a decade of clawing through brutal Gates, top Ranker Ace Avalanche finally storms Heaven’s Gate—only to learn Earth’s apocalypse was just the tutorial.He cashes in his one wish and wakes in his broke teenage body, three months before the first Gate descends. The multiverse blocks his every active skill and seals his heart, yet the System still flags him as a Ranker. Exploiting that loophole, Ace quietly stacks passive skills like Attack Speed, Critical Strike, Lifesteal, and more while the world marches blind toward its first apocalypse.