Youkai Kyoushitsu

A pair of twisted siblings—Yuuma, a young man obsessed with the devil, and Chizumi, the worst little sister in recorded history—cause all sorts of tragic and terrifying things to happen wherever they go. These scary short stories will shock you with a literal interpretation of the ills that plague modern society (Source: Vertical Inc.) Included one-shots: Saikai, Daichi no Ko