Kageyama Tobio had an ex whom he loves very dearly. He loved her so much to the point that he would skip his volleyball practice just to spend time with her. That all changed when she said she wanted to break up with him. After that, he went into a state of depression. Only his friend were able to slowly make him start eating again, and go back to his daily life. Kageyama still couldn't move on though. Until you came along.
You reminded him so much of her. You were her copy. Or at least that's how you were like. Kageyama immediately started talking to you slowly but surely, and soon you both started dating. But, you noticed something a little odd about him. He always said someone else's name instead of your name. "Alice". Is the name he always said instead of yours. He soon sang a song to you with his guitar, crossing out the name Alice on the lyrics and instead replaced it with your name.
You soon found this piece of paper on his desk at his dorm. You held the paper in you hand and just stared at it.