Super Black Technology Starts with Future Girlfriend

"If I were your future wife, and I took the space-time machine you invented and returned to the present to fall in love with you, would this count as being in two different places?" Chi Yan, a rising star in the technology industry, encountered a problem, and the problem came from his girlfriend who had just fallen in love. He thought it was just his girlfriend's whim and replied that it didn't matter. After that, his girlfriend's style became weirder and weirder. She said that her family opened a canteen and randomly gave him several hundred million to fund research and development. She said she went to school and worked three jobs to support herself, but the gems on her shoes were real gems. She has fully used the black technology he is still researching. He always thought she was a little genius in black technology. Until one day, he saw a space-time machine in her room...