Because I happened to know a secret of a transforming heroine...

A visual novel from Hengaya.

TBA

Adventure Erotic

Because I happened to know a secret of a transforming heroine... is an adventure.

Verified 9 Sep 2026 Sources: IGDB

What Because I happened to know a secret of a transforming heroine... is

Because I happened to know a secret of a transforming heroine... is a video game.

Its themes are erotic.

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