Fumito Nanahara is Saya's neighbor and the owner of Guimauve, a coffee shop near Saya's home. He usually serves breakfast for Saya and makes bento lunches for her. He once stated to Saya that she is special to him, and that she is more important to him than anything else. He is also a friend and junior of Tadayoshi back in their high school years, although he attended it much later than Tadayoshi.