I don’t want my youth campus life to be a Shura!

Su Cheng traveled through time, and just when he finally got into a prestigious academy, he found out that he actually had a system. What's even more outrageous is that he had to fail in his confession to get a reward. So he could only confess again and again for the reward, and was rejected again and again.
Su Cheng: "It's just a system task."
But what confused Su Cheng later was that those beautiful girls who had rejected him seemed to be looking forward to his next confession? And the way they looked at him became more and more weird... (The resume is weak, please read the main text)