From now on we begin ethics (Kokoha imakara rinri desu)

Behind his calm exterior, Takayanagi is an enigmatic ethics teacher. The class is filled with students who seem innocent, but harbor wounds: bullying, a sense of worthlessness, and even a tendency to hurt themselves. With the wisdom of ancient philosophy—from Socrates to Nietzsche—he turns boring ethics lessons into weapons to fight the darkness. Every word he spoke was like a scalpel, paving the way for his students to understand themselves and rebel against fate. ~~Manga adaptation full of depth.