Jasei no In: The Serpents Lust is described as a "short, linear game with a strong narrative." It is an adaption of a story by the same name in the famous Japanese book Ugetsu Monogatari (雨月物語, Tales of Moonlight and Rain) made by bleet.
Summary[]
The protagonist, Manago, is a simple weaver girl who gets caught in a rainstorm. A mysterious man in white appears out of nowhere and shields her from the rain, lending her an umbrella. Feeling indebted to him and perhaps a little attracted to him as well, she tries to return the umbrella to his manor hidden deep in the woods. Manago quickly becomes swept up in a romance that is not all that it seems, and must figure out who exactly the mysterious man in white really is, or face severe consequences.