MTL - Starting Off Survival With A Small Treehouse - Chapter 18 weapon manufacturing

With Ye Chen, who inherited the devil, reborn the Phoenix continent, invincible, there will be any unknown secrets waiting to be solved here.
   The “City Revival Master” has been completed, and my brothers support it ~~

- Description from ~

What will an ordinary man do if he finds out he is God in an Otome game? Of course, save the game’s Evil character, Morrigan! Unknowingly spread more chaos! Establish your own kingdom! Establish your own religion! Kill the Goddess of Light!

Orphaned at a young age , Layla Llewellyn feels like the luckiest girl in the world after she moves in with her uncle Bill , a gardener who lives on the scenic Arvis estate in the Berg Empire . To Layla Arvis seems like paradise ; she loves to explore the vast forest , always bringing her notebook to record the wildlife she encounters . She especially loves the birds , watching them with awe as they hatch and grow from fluffy chicks into beautiful birds . Duke Herhardt , the young , handsome lord of Arvis , is also interested in birds--- and Layla . But the difference is , he's interested in birds because he likes to hunt them.... and he's interested in Layla because he likes to make her cry . If a lovely bird is trapped in a golden cage , which will she choose : a life of luxury , or freedom ?

There was a man in the modern world that built his business empire from scratch. He was hailed as a genius by his peers and was respected worldwide due to his contributions to the world.If it is not only for that unfortunate accident that led to his death. He was a man who could potentially change the world with his mind that still stores a plethora of ideas.But—fate had others plan with him. He found himself in another world, what’s more, it’s primitive and technologically backwards compared to his last world. And what’s more, he turned into his younger self, and in this world, he was an orphaned boy.For him to survive, he must use everything that he had at his disposal, and that was all in his head.