In a high school setting, there are many people whose stories must be told: Hiro, an aspiring manga artist whose view of the world is "missing a certain color," according to himself; his childhood friend Kei, who is vying for his attention; Kyosuke, a photographer and cameraman who seeks to capture true emotion in his work; the ever-cheerful Miyako, who meets Hiro by chance and immediately becomes attached to him; the gentle Renji, unsure of his aspirations to become a novelist; and Kei's mysterious and quiet sister Chihiro, who seems to be a different person every day. As time passes and they interact with one another more, their paths increasingly intertwine as shades of regrettable pasts emerge.
Takao Kasuga is a lonely boy who spends his days immersed in books to escape his frustration with life. His only source of joy is the beautiful Saeki, who he secretly admires from afar. However, Takao's obsession goes too far one day when, in a moment of emotional folly, he steals the girl's gym clothes and takes them home with him. Worse, his terrible deed is spotted by Sawa Nakamura, a mysterious outcast who sits behind him in class who threatens to reveal the boy's secret unless he promises to engage in a contract with her. At first it seems Sawa just wants some companionship, but soon it becomes clear that this "contract" involves more than mere afternoon chats. In fact, Takao is about to discover just how dangerous his bond with Sawa is and how it threatens to tear everything - his life, his love, and even his sanity - apart.
Both are about the relationship between a nerdy boy and a strange girl. They both start with the nerdy boy doing something a little weird (preverted) after school hours and the relationship that ensues.
Both series have they're weird quirks and darkish atmospere (although Aku no Hana's was considerably darker). I think both seriesfit well together.
Shinichiro Nakagami is an everyday high school student, with the exception of having his beautiful and athletic childhood friend Hiromi Yuasa living in his household after the death of her parents. Unfortunately, their relationship is cold at best - Shinichiro can tell that she is suffering, but she acts coldly and distant from her foster family and so he is unable to help ease her sadness. His family is also forcing him to practice a traditional Japanese dance that does not interest him, adding to his frustration. On top of that, he is cursed to misfortune by another girl in school, the eccentric Noe Isurugi. Shinichiro juggles all of these problems on a day-to-day basis as he learns about love and the sadness of those around him.
Both have a mysterious girl that is of interest to the main character. Both have a quiet mystical feeling and really nice romance. Both shouldn't be missed if one is looking for a charming romantic story.