Wedge
Everyone in the school knows Xia Shuyan all over the world. The girl who was chased by Chen Anqian, a boy from a rich family, and liked by Mu Ling, a poor boy, who could play the clarinet. Helpless, Xia Shuyan only has a special liking for Chu Ye, who loves to play the piano.
Just because Chen Anqian and Mu Ling overheard something they shouldn't overhear: Chu Ye, I like you.
When they looked at Xia Shuyan in amazement, his high-spirited face one second before, and then his disbelieving face when they saw them the next second, they felt that the world had collapsed.
That Chu Ye happened to be Xia Shuyan's roommate+friend+tie sisters.