101Leafy researched the game with the Hilltop Works fan translation patch, English translation by Cargodin
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Full Corpse Bottle三尸（サンシー）入りのびん
Full Corpse Bottle is item 26 of the game's item table, in the Items group. The script never names it.
This is not your average malice!
三尸はただの邪気ではなさそうだ。
It never shows up on its own in a talk with a picture, so it has none here.
Item table: Framed Malice Mirror Full Corpse Bottle Bug-stuffed Turtle
English translations by Cargodin for Hilltop Works Fan Translation Patch: https://www.patreon.com/hilltopworks/posts/kowloons-gate-160555525?collection=18503