Three Exorcism Siblings manga volume 3 features story and art by Shinta Harekawa.

The Noto Shrine has lost its guardian, stolen by Tengu in the night… but the only people who know of its sacred location are the local parishioners… one of whom must have led the Tengu straight to its secret hiding place! Mamoru and his brothers must contend with the voracious demons, all while trying to figure out which of these innocent-seeming devotees of the shrine is the real culprit!