The only real reason you might be reading an obscure ecchi manga centred around quasi incest is that youre a fan of the author Boichi, due to his very popular works like Dr Stone or Sun Ken Rock. So let me tell you, I have no idea what the fuck this even is. Even by the standards of ecchi, this manga is embarassingly contrived. It also is frankly just a little creepy, given that it basically centres on a sexual relationship between a teacher and students, or, if that wasnt weird enough, stepfather and children. Story is excuse for fanservice, so thats not really important.
Characters are excuse for fanservice, so thats a 3. The art is very good, because even when Boichi is drawing incestuous manga with underlying themes of statuotory rape, he can still draw like a motherfucker.
So yeah. If you like Boichi, this is nothing like the rest of his stuff, so you only really need to read it if youre compulsive about reading everything he ever wrote. if you want softcore porn, I guess this could at least be a well drawn one. For everyone else, theres literally nothing good here.
Edit: Upon reading chapter 3, I've decided that anyone who enjoys this is a bad person. What the fuck was Boichi thinking with this shit