Help

I was reading this manga last year and want to find it again because hopefully there is new chapters .it is about this ‘human’ man that is made into a teacher in a children yokai school and that is all I can remember I may add more to this anyway thank you in advance there is blood in it it and death and from what I have seen it is not gay and has know romance whatsoever and I think it may be a manhwa I do remember what one character looks like . The principal of the school is very small has brown skin and golden eyes and the main character looks to be on the older side