When going back home from school in the usual train line, Miyu's breasts are groped by a train molester. Shun, her classmate, appears and saves her. He walks her home and teases her about the chikan groping her breasts. He also kisses her.
Miyu runs off to home. The truth is, however, that the train incident was all a cunning trap plotted by Shun. Back home, Miyu regrets having her first kiss stolen. Then, Kou, her childhood friend, appears and, due to Miyu losing her key, takes her to his home. There, Miyu confess her first kiss was stolen. However, Kou tells her they have already kissed, so it was not her first kiss.... That night, Kou takes Miyu's virginity.
The next day at school, Shun apologizes and invites her home. Miyu accepts, not knowing is a trap. There, Shun drugs her and trains her as sex slave. She resists it at first, but after that day, when she remembers that, she starts masturbating. Did she actually like it, and does she want more? What about Kou?
Osana Najima to Doukyuusei (ONtD) follows a very typical formula used in hentai these days. Key word: "typical". You take an honor student, molest her through various ways until she can never go back to the way she was again. With that said, ONtD isn't something that will leave you traumatized or feeling bad. In fact, there is a fair bit of vanilla sex involved. On the contrary, ONtD may fail to leave a lasting impression.
As with most hentai, there isn't much of a story. Miyu, a good girl, gets molested and is torn between her vanilla relationship with her childhood friend
Kou and her molesters. There is only as much plot to allow for certain sexual situations to play out. Train groping, BDSM, vanilla sex, and a bit of piss/scat.
This is where the hentai falls short. Bland characters. Miyu, the protagonist, gets molested almost too easily. She puts up little resistance and follows her molesters commands a little too eagerly despite saying "no".
Kou, the childhood friend, is another bland character. Other than noticing that there's something wrong with Miyu, he's pretty much useless.
Shun is your typical rich horny playboy. He's the molester/trainer, but not too complex as far as character.
Probably the most interesting character in the hentai would be the principal that appears in episode 2. He's somewhat of a freak and it is quite funny to watch.
Character design wise, it looks good. Not terribly detailed, but good. The animation is okay at best. There are some odd angles and plenty of repeating frames. The production value of this hentai is not high.
The voice acting is a bit different. I can only describe it as, well, monotonous. Miyu's screams gets a bit annoying at times.
It was entertaining I guess. There are a couple of good scenes with Miyu on a leash like a sad little puppy. If you're into BDSM but don't want to be traumatized I'd give Osana Najimi to Doukyuusei a try.
The story had a bit more depth than usual but it still was one of those generic hentai plots. The art was ok, nothing spectacular but not too badly drawn. The sounds were good, the voice acting by the girl was done well. I enjoyed it most of the time. And unexpectedly the ending kind of shocked me cuz im so used to those generic endings in this type of anime (i was quite pleased, if you watch it you'll understand.)