|The Injection of Eternal Sleep|
|Konsui Shōten no Injekushon|
|Main Ability||Killing people with small dose.|
|Made-to-Order||Byōinzaka twins' ancestor (unnamed)|
|Current Author||Yamane Byōinzaka|
|Anime||The Portrait of Heresy|
It's a syringe used by Yamane's ancestor, a medical personnel who cured many people in the army and makes poisons for enemies, however, her ancestor only killed people she deemed unworthy, and then cursed her injection. Then, the syringe was cursed and is now in the possession of Yamane.
- Therapeutic Success
- Drug Enhancement- The effectiveness of a drug injected with the good is increased a dozen fold.
- Main article: The Injection of Eternal Sleep/Image gallery.