Won't You Let Me Graduate? Build an Aerospace Engine Backhand

I didn't tell the thief PhD supervisor PUA, but he didn't even let me graduate! My uncle can't bear it, and my aunt can't bear it. I quit! Directly develop super aerospace engine! Lin Yi, who awakened the system after traveling through the parallel world, thought so. Instead of working under a scumbag, it's better to become your own master. When the aerospace engine succeeds, it will be the day of revenge!