Pokémon: Chronicles of Freedom - Chapter 5 - : Instructor Viper

“A qualified gunner should have enough firepower coverage.”

“So my battery has a diameter of three thousand meters, which is very reasonable.”

After a grand fireworks, Chen Jiang looked at the shocked eyes of the passers-by around him and said seriously.

…

When all races were thrown into a world and started to fight, a world with the theme of survival began.

- Description from novelbuddy

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

In the second year of the apocalypse, Du Yue died alone, killed by apathy and exposure to extreme weather. Somehow, she opened her eyes to find herself not only alive, but also back when it was three months before the apocalypse. Despite the surprise, she thought about the upcoming disasters and upheavals. First, it was the fog that carried a virus that stayed for a month.

Then, global temperatures rose to over 120 degrees, evaporating most of the world’s water and melting all the icebergs. After that were level-10 earthquakes, cyclones, tsunamis, permanent eclipse, and avid rain… and that was not all, because after global warming, came global freezing. As temperatures dropped to below negative fifty, the savagery humans displayed was far worse than any imagined horrors like zombies! Knowing what was coming, Du Yue sold off her family property and used the pocket dimension her mother left her to hoard as many resources as possible, so that she could survive the apocalypse. Meat? Grain? Oil? Spices? Weather gear?

She bought everything! Steaks, French fries, spaghetti, and canned food must all be stocked up! To He Xing, the male lead, she was a god and the key to surviving the apocalypse! Having thought of the apocalypse, Du Yue sold off her family property and used the pocket dimension her mother left her to hoard as many resources as possible, so that she could survive the apocalypse. Meat? Grain? Oil? Spices? Weather gear? She bought everything! Steaks, french fries, spaghetti and canned food must all be stocked up! To He Xing, the male lead, she is a god and the key to surviving the apocalypse!

I am Master Siwei, and I speak for arcane arts.
This is an era of heroes and heroines.
This is an era of great changes.
In the end, it will be an arcane era opened by me.

- Description from Novelupdates