Saikoukyuu Inran Kagu ~Umineko no ○ku Koro ni~

Saya** is employed to a mistress of the house. Having been born in unfortunate circumstances, she still managed to live a peaceful and quiet life in itself.

However, these happy idle days of her life are soon to end.

The mistress of the house ordered the girl to perform sexual services...

This secondary title features Saya** from Umin*ko no Naku K*ro ni 18+ only novel game where she is assaulted by a mysterious tentacle monster along with the mistress of the house.

[From DLsite English]