Backlight Traceability

Su Cheng, who accidentally time-traveled into the body of a young top student, was surprised to find that he had inherited the top student's huge debt! What's even more terrible is that he found that he couldn't use the top student's talent. As a result, Su Cheng could only choose to live in peace. However, things took a turn for the better after a while... Strange light cards, advanced technology, unknown shadows... Can Su Cheng turn danger into safety, grow into a superpower step by step, and successfully find the way home?