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. Chapters: 1. Dissolving Classroom 2. Meet Again 3. Children of the Earth 4. Worshipping Beauty (Dissolving Beauty) 5. Dissolving Apartment 6. Chizumi's Dissolving Love 7. The Demon's Conference