This sheet music is the piano solo score of "Wasuretakunai (忘れたくない)" from the OST of the "Even if This Love Disappears from the World Tonight (今夜、世界からこの恋が消えても)".
▼Please enjoy referring to the performance video!(4th song 06:56~)
https://youtu.be/AAuMpfFgFXo?t=416
▼Click here for the "Even if This Love Disappears from the World Tonight (今夜、世界からこの恋が消えても)" sheet music set