Misanthrope Teaches a Class for Demi-Humans, Vol. 3, A

I may be a self-professed misanthrope, but after two years of teaching demi-human girls at Shiranui Private High School, my antisocial tendencies are gradually softening.
It’s the start of another school year when this change of heart appears, along with new students Aoi Wakaba, a narcissistic elf, and the airheaded oni Maki Okonogi…but the biggest change is the new teacher Mirai Haruna, one of my former students and the source of my trauma! This unexpected reunion has thrown me for a loop. Why did Haruna become a teacher, and why at this school of all places?