- Voiced by: Kanae Oki (Japanese), Jad Saxton (English)
- A demon lamp and Kim Diehl's weapon partner. She is called Jackie for short. She is extremely faithful to her meister to the extent of wearing the same uniform as her. She knows that Kim is a witch and accompanies her during witch masses. She flees with Kim after her secret is exposed and is likewise exposed to Arachnophobia's Morality Manipulation Machine, though it takes mild force from Ox's weapon Harvar to return her to her senses. Kim wields her like a flamethrower in her weapon form, and she can transform her arm into a mortar. She can also be extended into a broom which allows Kim to fly. When not used in battle, she can be used like a normal lamp, providing light or heat for those who need it.
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