Momoiro Süleyman

Takeyama Kurofuto is a new teacher who has come to fill a vacant position at the private Obukure Academy Junior High School. Soon after arriving at the school, which is rumored to be haunted by demons, he is nearly mugged (or extorted) by some nasty students, but a mysterious demon (?) appears to save him...!?

(Source: Hakusensha, translated)