Furenai Koibito (ふれない恋人) by Matsukawa Nao
Alternate Name: Untouchable Lover
Genre: Seinen, Romance, School Life, Supernatural, Drama
Synopsis: Youko has a protector in Shige-san. He has guided her, helped her, and always maintained a respectful propriety since she was a little girl. The difficulty is that Shige-san is a ghost, a poltergeist who only communicates with her by throwing small rocks to signal his agreement or to show her a path. But now that Youko is beginning to feel the first stirrings of young love, will Shige-san’s guidance help her find her true happiness?