MTL - Aztec Eternals - ~ The author is about to crash, please help

When he opened his eyes he found that he had been reborn as an extra in a novel, which he finished reading yesterday. On top of that, he has become a student of the same battle academy, where the main plot will happen. Let's accompany Rio on his journey and find out where it leads us.“i will steal protagonists chances, as for what will happen to main plot if i do so? i don't care!” (Rio)*The book cover doesn't belongs to me if someone wants me to take it down please contact me directly.*(MC is selfish and cares most about himself, rather than following the main story he will follow his own will. and there's no harem too.so, if you like a hero of justice and a plot following type mc with a harem or something then this is not your cup of tea.)

A Japanese salary man was reincarnated in a different world with swords and magic. He reincarnated into the family of a powerful noble. One day when he became twelve years old, he was suddenly summoned by his father.

「 I do not mind whether it is a woman in the town or a maid in our house, learn about women.」

Having gained the permission of his father, he uses his power as a noble to have his way with women.

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!

Lin Mu was pushed down the cliff, but he did not die and arrived to a magical world instead.

A huge python with wings and can fly, alright, just think it as the legendary Mayan Snake God;

A gigantic centipede that can fly in the sky, alright, he kinda seen it before in ‘Journey to the West’;

A mighty big wolf with a body as humongous as an elephant, en, just think it as a mutant;

….

Although the animals in front of him were a little strange, they are still animals but why did all of you suddenly turned into humans? Coming across wild beasts, Lin Mu still can accept it, but coming across ‘*yaojins’, Lin Mu became . . . . . . excited instead. What? You guys are the infamous drifter beastmen? I don’t know anything about that. You guys did a lot of heinous crimes? I don’t see that either.

And so, Lin Mu began a hard but satisfying life of building a home in a another world.

*Yaojin/妖精 doesn’t have a proper English equivalent word. The nearest meaning would be supernatural being or Yokai (Japanese).

- Description from Novelupdates