Big Mechanical Master

After the RD virus broke out, a parallel world called the "Mirror World" began to be known to more and more people. The exploration of the mirror world has gradually become the mainstream of the times. Feng Nian discovered that in this era where people with superpowers are everywhere, even if he has a system that allows him to create various magical machines, it is not very safe. The story starts from the day Feng Nian refused the unspoken rules of his male boss...