Collection of Toume Kei's oneshot work from 2011-2016. 1. ELEMENT 7 2. コビト事情 (Fairy Affairs) 3. Apartment of the Dead 4. 夕闇古書市 (The Twilight Antique Book Market) 5. 天国のドア (Heaven's Door) 6. 青密花 (Blue Secret Flower)