MTL - Cub Keeper - Chapter 714 Extra Gunzo Gakuin life (below)

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!

After reincarnating, he realized that he was endowed with a miraculous game-like system, which enables him to increase his own stats and transcend the limits of the human body. This system even has a game-breaking ability to save and load in real life!

In this new world that’s akin to a 2-D game, he just wants to enjoy life and head for a glorious future… However, he is quickly embroiled in a complex plot. Can he unlock his true potential and utilize his system to break the shackles that confine him and discover the truth about his previous body’s circumstances?

- Description from novelupdates

Born of a great family, world shaking genius.

The beautiful Blue Star tragically fell victim to an invasion by enemies from the Otherworld. The globe was left riddled with wounds, but it also presented an opportunity for the Awakening of the Blue Star people—a chance to choose something other than hot weapons. Individuals could use their own strength to slay enemies, amass wealth, and reach the pinnacle of their lives.Ye Nai was lucky enough to awaken in advance, releasing energy spores that could decompose organic matter. He had planned to make a stunning debut during the mass Awakening at school, but results showed he hadn't awakened?!What the hell?I haven't awakened?Then what's this Fungal Mycelium I have that can decompose abnormal creatures?Ye Nai gave a devilish smile.Haha, everything that happens is to my advantage. Whether it's the enemy or abnormal creatures, obediently fall into my hands and become nourishment for my mycelium!

On a certain day, a certain thought came to Japan’s Sun Goddess. ——Aren’t there too many Japanese people being abducted to other worlds? It’s true that the large majority of Japanese are diligent and docile and soft-hearted, which makes them pretty much the best people to ask for favors. “But recently it’s just gotten way too out of hand…… Oh, I’ve got it! Whenever a Japanese person is summoned, I just have to summon an otherworlder!” And now, every time a Japanese person is summoned, princesses and elves and beastmen and whatnot are reverse-summoned. Under the acknowledgement of the government, they begin living in Japan. Today, too, Japan is at peace. And so begins this laidback isekai cultural exchange story♪