Sanemi and Giyuu were both teschers and the kimetsu no yaiba academy, both of them were dating and most of the teachers and students knew, Sanemi was the math teacher while Giyuu was the P.E teacher, Giyuu was kneon to be the very quiet, stoic, cold, aloof and non-talkative, while Sanemi was kneon to be the very loud, hot-headed and short-tempered, aggressive teacher.