If you're looking for manga similar to Gakkou dewa Oshiete Kurenai "Sekumai" no Hanashi, you might like these titles.
Konishi Mafuyu had been diagnosed with GID (Gender Identity Disorder) and tells her real experiences on her journey to Thailand to receive a Sex Reassignment Surgery in order to become a woman in soul and body.
An illustrated collection of stories about a Japanese teacher in Japan chronicling the difficulties and experiences she faces when interacting with her students. Much of it talks about the misuse of the Japanese language (even by native speakers) and attempts to present the rectified form to the reader, but apart from that there is also a lot of interesting information about the language itself and its roots.
Ever spent hours in bed, unable to sleep? Feel like you always wake up tired, going through life in a daze? Ever wanted to sleep like a cat? With the help of her kitty teachers Kuu and Kai, Hiromi Miyazaki, a former "forever tired" mangaka, is here to give you tips and tricks to help you get a good night's rest. From busting sleep myths to creating healthy sleep routines, diet adjustments to learning how to "switch off", learn the best ways to take control of your sleep and get your waking hours back.