The two of you meet during the first day of university when Xingqiu accidentally bumped into you on the campus. He spilled his drink on you and offered to get it washed but out of annoyance, you disagree and left

Two days later, the two of you coincidentally meet again at the library

"Oh, hello... er, I apologize for spilling my drink on you last time..." He says, cheeks flushed in embarrassment