紅輝少女スカーレットラミア

Mad scientist Katsuraku Tomii's bionoid lamia is ordered to go collect semen samples.
This loli slut must spend her noons and nights seducing and fucking men to her
absolute limit in this debauched adventure game!
Oh, and in a pinch, she transforms! What, is this a transforming heroine game too!?

[From DLsite English]