From HaruHime: 541k5y
The story sets place on a certain southern island. Kakeru, Mana’s stepbrother, has been demanding her body for two years now. One day, Mana goes swimming in the ocean and meets Akihiro. Akihiro transfers into her class, and the two start going out. Although she is pulled in my Akihiro’s bright and kind personality, her frightening life that she spends with Kakeru ceases to change, and the secrecy makes her suffer. On the other side of the situation, Akihiro senses something isn’t right. Mana and Akihiro go to a summer festival, where Kakeru shows up with his childhood friend Ayano. Upon seeing Kakeru follow Mana, Ayano asks Akihiro, “Don’t you think that Kakeru likes Mana?” Akihiro pulls Kakeru away from Mana, and declares, “Mana is my girlfriend.” However, an angered Kakeru knocks Akihiro down, injures him, and before Akihiro’s eyes begins to hold Mana…
3 Volumes (Complete)

The sequel/afterstory (I think) has the guy being friends with all 3 of them despite fucking the black haired kid's girlfriend in front of him and then proceeding to fuck the other girl (who witnessed it) the very next morning.
How do you recover from that? Not just recovery, since he is bff with them now. That's just fucking wild.
Yes. this mangaka's plots are similar to Sakurada Hina, except it's even more twisted. Kakeru is unbelievably weak and bland as a character. Yes, she's a rape victim and she's traumatised, but it can be done so much better. And the drawing is horrendous. The eyes are absolutely creepy. They almost have no whites. Also I'm sorry to say this, but Sakurada Hina's heroines have a much stronger personality than Kakeru, i actually appreciate that they LIKE the main guy's twistedness, instead of having the twisted guy as the secondary anti hero. It's so banal and boring.
From MF, it seems that that WASN"T chapter 1 that was scanalted, but still... it's my cup of tea, since it reminds me of Sakurada Hina's work. So if you aren't into the psycho stuff with a shoujo twist, well, pls stay completely away (duh!) but if you are, this should satisfy you, that is, you wanting more since there's only one chapter 😛
Does anyone realize SHIINA Chika's manga somewhat similar to Sakurada Hina? I do think it is. Not only the artwork,but also the plots. The characters are a bit creepy,most of the stories are twisted and complicated... I don't find its negative but opposite,it's a new trend for shoujo manga while you're so fed up with cheesy, cliche stuffs.
Ok,Back to Aoi no Binetsu,there's only 1 chapter's out so i can't really tell any good yet but the art,still waiting for more