My Love Life Is Not What I Imagined!

Akira Kageyama is an average lonely young boy who attends Sakurai High School. One day while eating his lunch on the schools rooftop he finds a gold key and a note next to a pair of school shoes. “This key now belongs to you. Do what I couldn’t, and find love.” The note reads. Akira automatically took the note as some sort of prank. He turned in the key to the schools lost and found not wanting any part of the prank. A strange girl with a strange silver lock around her neck suddenly appears, taking an interest in Akira. Her name; Mayuka Nase, for some reason she seems to have a connection with the key and Akira.