Kodomo No Jikan, also known as A Child's Time, also known as Nymphet, has had an odd history of censorship and bias against it. Given that it both parallels and subverts Vladimir Nabakov's 1950s novel Lolita, it does rather need explaining; For one, the reason no company will touch it is the the fact the characters are underage. The actions of the young characters Rin Kokonoe, Kuro Kagami, and Usa Mimi (3 years younger than Japan's Age of Consent) are meant to make you feel off-balance. Considering that the first character introduced is what can be considered the Avatar character, Daisuke Aoki, and he finds their actions wrong, so are you supposed to; though this seems like it might appeal to the Lolicons out there, things develop in story that very much says otherwise. I cannot write what it is, but it is suffice to say that it completely refutes the accusations of certain Seven Seas Publishing employees who claim it is a "training manual for pedophiles".