Fantasy World: I Picked Up a Silly Girl's Phone

He transmigrates into the world of Journey to the West and finds a silly-girl phone. It’s made of highly flexible synthetic material and can switch to human mode. It has magical time-travel capabilities, a virtual-world function, X-ray vision, and the ability to acquire permissions by transferring functions, among other things. In the world of Journey to the West, he pays his respects to Patriarch Bodhi, sneaks off with his senior brothers to steal peaches, and brings the Queen of the Women’s Kingdom back to the modern world. In a parallel world, he builds mechs and develops small nuclear-powered mechs... Step by step, he grows stronger, working with others as a partner rather than being the only one who gives. Power is only a deterrent when it’s in your own hands!