SPSB-41 Beautiful Saint Mask Fontaine: Demon of Reason Collapse — Dirty Fontaine Appears — Umi Oikawa

The investigator who protects the peace of the city, Yuuka Sawamura, comes across a scene where a civilian is being attacked by a monster. Yuuka pretends to go get help and transforms into the magical heroine Fontaine. Fontaine defeats the monster and saves the civilian, but is then ambushed and defeated by monsters hiding nearby. Captured at the demon tribe’s hideout, Fontaine is subjected to harsh abuse by the leaders. As her reason collapses under the tribe’s cruel treatment, her heart is consumed by despair and hatred, transforming her into Dirty Fontaine, a warrior who follows her own desires. Purifying the demons and restoring them to human form, only to prey upon them afterward, Dirty Fontaine wears a sinister and wicked smile. [BAD END]

AvMates Insight
SPSB-41 is one of 59 videos featuring Oikawa Umi (及川うみ). Her most frequent collaborator is the maker GIGA, which produced about 22% of her total works.
For a full list of Oikawa Umi’s works, see the Oikawa Umi JAV playlist .
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Video Information

Release Date:2026-02-16
Actor:Oikawa Umi (及川うみ)
Product Code:SPSB-41
Product Series:SPSB
Maker:GIGA
Label:
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