- Hankouki (犯行期)
- Catalog Number
- S.D.R-017 (2nd Press)
- Jishou (Shounen Terrorist) (自傷（少年テロリスト）)
- Wasurenagusa ~K no Souretsu~ (「勿忘草」〜Kの葬列〜)
- Hoshi ni Negai wo... (星に願いを・・・)
"Hankouki" is the first single released by Nightmare. 1st Press was limited to 1,000 copies, while 2nd Press was limited to 2,000 copies.