Adult PC Game: NTRRPG Gaiden - The Book of Insect Defilement Final by ATN Archive

Overview:
●A Mother Stolen by a Dirty Fly in an Insect○NTR Game
Your beloved mother is being stolen away by a dirty, lowly fly, a weak and foolish monster.
With 6 short scenes, this game is perfect for a quick session.
The heroine is a returning character from the previous game, but there is no story connection, as this was created as a collection of insect scenes, so even if you haven't played the previous game, there's no problem.
Additionally, some scenes include extreme expressions such as licking urinals, but you can skip those scenes and continue with the story.
Even in that case, the recollections will still be registered.

NTRRPG Gaiden - The Book of Insect Defilement Final by ATN Gameplay Preview