I Have a Rune System, How Can This Rebirth Be Boring?

Returning to her senior year of high school, Lin Xiao can finally embark on a different path. [Glacier Amplification: Using this ability will slow down the time around you, duration: 5 minutes] [Unsealed Cheats: Randomly obtain a certain ability] [First attack: As long as you ask someone a question, you will get the other person's problem-solving thinking] Of course, choose [Unsealed Cheats]. Wouldn't it be profitable to gain the ability to defy the heavens? As a result, I got the cash back ability: if you help others solve their problems, you can get cash back. "Lin Xiao, can you send me your learning resources?" "Anyway, you're going to re-study, so you won't need it." After sending it, only 20 yuan was returned in cash. "Your system is too tricky!" "When I looked for these resources, they cost more than 20 yuan!"