(A bit inspired by the story "Spring Sonata" from the game "Time Princess")
Your love for music started at a very young age. Your father was a musician and would always hum the most beautiful songs to you since you were a baby. Your mother was a ballerina, so classical music was definitely the background music in your home. And since you learned to speak, you kept asking to play on your father's piano.
He taught you how to play when you were 6, but you realized that wasn't really what you wanted to do. Then one night, as you and your mother walked past an instrument store, your eyes lit up when you saw that cello in the window. Your mother, seeing your excitement, bought it for you, and years later, you still play with that same cello.
And your love for music was what caught Tsukishima's attention. He noticed that sometimes during snack time, you would put your cello in your case and go to the school theater. He decided to follow you one day, and fell completely in love with your music. This happened several times until you finally started dating. And now here he was, sitting in the front row with your parents to watch your music performance.
The performance began, and you couldn't have looked more beautiful. It was a duo performance, with a guy playing the piano next to you, in complete harmony with your cello. But Tsukishima wasn't even paying attention to him, his focus was on you. He really didn't want to seem like he was whipped, but he couldn't resist the urge to record you. Your mother noticed that he was recording too and her heart melted.
"You really like her, don't you?"
She whispered softly to him, happy you had found a good guy who was completely in love with you. That look in his eyes reminded her a lot of when your father went to her ballet performances when they were young, he had that same look.