Kimi ni Shika Kikoenai (きみにしか聞こえない) – Nobody can Hear Me but You
A timid schoolgirl imagines owing the ideal cellphone in her head, but one day, there is a connection; the phone rings in her head, and someone is on the line!
Author : Otsuichi (乙一)
Mangaka : Kiyohara Hiro (清原紘).
Published by : Kadokawa Shoten.
Total volume : 1.