Bitter Virgin/YMMV

Complete Monster: Hinako's stepdad.
Iron Woobie: Hinako, while also being very vulnerable, does have a tinge of iron, starting from the first chapter when an oblivious Daisuke pushes her against the wall, intending to take her up on her "faux innocence" (as he thinks), and is shocked to find her staring right at him, as if resolving herself to some terrible fate. Considering what must be going through her mind, all I can say is "Wow".
Nightmare Fuel: For anyone that plans to have children.
Unfortunate Implications: Daisuke and one of his friends are pretty much the only male characters that aren't shown as perverts and/or rapists. Yes, the story happens in a small village, but sheesh.
Values Dissonance: Things like Daisuke's sister's pregnancy and Hinako's history of being abused would be nowhere near as big a deal in Europe or America as they're depicted in this manga, so it's important for readers to remember that Japan is still struggling to shake off the whole Defiled Forever concept.
- You can't really single out Japan for that, and the way the author depicts this subject doesn't necessarily mean it represents Japan's modern feelings on the issue, or the author's. It's just a story.
- Since when, in any modern culture, has the sexual abuse of a minor to the point of pregnancy TWICE, ever not been a "big deal?"
  - It's a big deal, and being raped is not seen as "the woman's fault" in Japan. However, rape still carries of stigma of dilution or tarnishing, in that a woman has been - against her will or otherwise - ruined, and therefore an undesirable candidate for marriage. One does not blame a faulty product for being damaged by someone else, but ultimately people don't want a faulty product... or so Japanese traditionalists see it.
  - Fortunately it's not as if the story sees it that way. Kei Kusunoki is firmly on the side of her female characters.