The Runesmith - Chapter 516: A Magic Letter.

Gary Smith arrived in a peculiar world of beastmasters, where an ancient taboo was reborn from the depth of time, and an evil god was lurking.In this world, birds and beasts, rivers and mountains, even elements could spawn spiritual power and turn into pet beasts. Among them, the powerful ones became ecological niches by themselves, radiating secret realm ecosystems such as the Yellow Spring, Skeleton Kingdom, Succubus Nest, and Kingdom of the Sky Tree, nurturing countless followers.The beastmasters make contracts with the pet beasts, nurture them, and control the spiritual power.After witnessing the “Taboo Sun” event, Gary Smith obtained the ability to extract materials from everything in the world and compile “Secret Food”.Through the Evolutionary Secret Food, the combination of “The Shattered Dusk World” + “Ancient Dragon’s Dead Egg” results in the Feast of the End. When the pet beast consumes it, it evolves into the Dusk Dragon God. The Dusk Domain erodes the world, turning into the God at the end of time.The Skill Secret Food allows the pet beasts to plunder skills from everything, becoming omniscient and omnipotent. The Sacrificial Secret Food snatches the taboo time, sacrifices the ancient beings, and blasphemes against the gods.His style of beast control also started to become peculiar.There is the Spider Shadow that devours ancient dragons and weaves dreams of all lives with its threads, the Red Master that pollutes the multiverse, and the Devourer of the Realms, who consumes worlds...In response to this, he explained, “My pet beasts are just a bit peculiar. They really are not evil gods!”

Yang Yi crossed over the world with a storage space with him. He ended up in some desolate wilderness populated by flying beasts and dangerous predators and also crawling poisonous bugs and snakes. To prevent getting bitten in the ass by venomous bugs when going to the toilet, let the great infrastructure begins –
Our goals are:
Eat well till full stomach.
Having clothes to wear but also being good looking.
To have a house that could cover all seasons.
Roads that leads to every place; develop agriculture, industry and commerce together.
No shortage of both material and spiritual needs.
He was DETERMINED to build a safe, comfortable and prosperous modern city in the wild world together with the native tribe with max efforts.

- Description from Novelupdates

Michael was suddenly reborn into a another world by a God because of an accidental death. To make up for this fact, the God gave him another life in a fantasy world of swords, magic, and monsters.Unfortunately, it turned out that the world he was reborn into was still stuck in the medieval times. It didn't have electricity, it didn't have proper plumbing, and it didn't have any technology that he was so used to back in his old world.But thanks to the God's blessing and an AI assistant called ChatJK1, he was given the power to MAKE his life comfortable. Slowly, Michael transforms this new world into a place even better than his previous one by taking ideas from the modern world and putting it in this world, with the added bonus of magic.

The world is full of mysteries. Strange, seemingly unexplainable events occur more often than we may realize. A young boy may catch an illness no doctor can explain. An office may catch fire for no apparent reason. And perhaps, someone may die a sudden and unexpected death – their bodies blighted beyond recognition.