Mechanical Enemy (Time Travel)

This is a story about a future soldier who passed away and passed into the body of a fallen boss. This is another story about a down-and-out boy who picked up a Transformers in a junkyard. (This story tells us that if you have nothing to do, you might be able to find diamonds, jewelry, banknotes, moonlight boxes, etc. If you dig into the trash.) If you don't leave a message, I'll bite you.