Legend of Wyatt - Chapter 5: Genius Warrior

I reincarnated and became the young sect master of a sect that dominates a region.I originally thought that with my solid backing, I will not have any worries in this life. However, sudden changes occurred and the sect declined.When the last ten disciples were forced to leave, only a deaf old man and a dog named 'Haha' remained in the sect, I suddenly discovered that the buildings in the sect could be upgraded!I'll upgrade the main hall!I'll upgrade my residence!I'll even upgrade my kitchen!A super sect is currently rising inexorably like the Sun...Welcome to my sect.I only accept disciples that are geniuses. Even super experts have to pay if they want to join.There's no free lunch in the world!

Because I like to collect antiques, I was accidentally brought to a magical world by a crystal skull in my collection.

- Description from novelbuddy

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

The story starts on earth, after some unknown circumstances, the world was suddenly invaded by monsters from other worlds. Many died and even more turned into zombies, starting what many would call 'The apocalypse Era'.

Rin, a normal teenage boy who lost all of his family members was on the verge of falling into despair when a goddess appeared and sent him to another world that was very similar to a game Rin played before the apocalypse.

Her goal from this was simple, trample on all the protagonists and become the strongest creature in that world for a chance to get back what he thought he lost forever.

Accompanied by a cold beauty, both of them embark on a new journey to become stronger, get back to their world and fix everything.