Keys To My Heart [Hanako-kun x Reader]

"Haven't you heard the rumour? 'Zero' of the Seven Wonders: Kazumi-san the Cursed Pianist. They say that she resides in the abandoned music room. And if you manage to sneak into the school really early, at exactly 5:00 AM the sound of a piano playing will echo through the school hallways." "Woah! That's really eerie!"...