**

This book is a fanfic of "Back to the Future 1999". Because I don't know why the label given by the platform is incorrect, I hereby declare it. ————————— On the eve of the "heavy rain", Sonnet tightened her pupils and stared at the person in front of her. Her face was extremely familiar, like a red iron piercing the sadness in her heart. "Vertin...? No, it's impossible! She should still be receiving treatment in the foundation. Who are you?!" "Who are you provoking? After getting rid of the group, another strange guy comes... Forget it, if you want to know, confirm the answer yourself!" ……… The humidity of the air, the cold temperature... I still vividly remember everything, starting from the drop of raindrops falling into nothingness in the sky. The distance between them seems to be further away than death.