https://www.dlsite.com/maniax/work/=/product_id/RJ406257.html

tl;dr - Labiata finds what she thinks is the last human (Player) and fucks them. At the end the intro scene from the game where Constantia and Griffon find (You)/(Player) happens as the thing Labiata has been fucking turns into its true form which an Iron Parasite/enemies from the game

Base +7, ng34 +6, hobohobo +29, Wakaka03 +6, LegoArielFanMaster +10, Longsworduser +16, coltainer +6, Porokichin66 +9, AncientPhoenix +7, darkwing42 +47, NazWell +10, MrMacaro51 +6, qscnkp +6, and 4 more...

Oh yeah, Labiata can't detect a human like the other bioroids because she's like, the original so she relies on ocular vision instead of brainwaves or someshit

Base +8, FlatChested +9