101Leafy researched the game with the Hilltop Works fan translation patch, English translation by Cargodin
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Birdcage Lass鳥篭妹

Birdcage Lass is row 32 of the game's guilü table, with the elements Fire, Metal, and Water. It has more than one element, so the game gives it no weakness.
It drops nothing and has no random battles, like every guilü with more than one element: it is fought in a set battle.
Guilü table: Fat Sub Birdcage Lass Foetal Bulb
English translations by Cargodin for Hilltop Works Fan Translation Patch: https://www.patreon.com/hilltopworks/posts/kowloons-gate-160555525?collection=18503