Shouya, a high school boy whose heart has never known romance, comes across an internet diary filled with wistful whispers of love toward the writer's same-sex crush. A photo posted to the page provides a hint as to the blog's owner: Tsubame, a fellow classmate known for being a lone wolf. Shouya realizes that his friend Ryuu is the object of the diary writer's affections, so he attempts to play matchmaker... but where will his own feelings take him in the process?