My girlfriend is a cello player

One day, 18-year-old high school student Lin Tian was accidentally bound to the producer system. As long as he bound a partner and trained him to become a super "idol", he would be rewarded.
After meeting Gan Yanyu, a mentally abnormal and paranoid cellist, the two hit it off and started to create short videos, and headed towards the highest honor in music competitions!
So,
"Ode to Love", "Canon in D Major", "Symphony of Fate" and other god-level music came out!
The ancestors carefully selected, quality guaranteed, and brought a little classical shock to the world.
The Coke in the hands of the audience suddenly turned into a red wine glass, and the tattered vest on their body turned into a tuxedo...
As the melody of the two people played the world, they overcame all the obstacles in the music competitions, and their videos became a love variety show that countless netizens urged!
......
In a season of cherry blossoms, Gan Yanyu, who had just won the championship in an international competition, played a song that Lin Tian had never heard before on the stage of thousands of audiences.
In Lin Tian's astonished eyes, the girl put down the bow and smiled like a flower.
"You've written so many songs for me, this one is for you."
"It's called - "Love Letter"."