Cuckold Princess

A man fulfilled his dream of becoming a teacher somewhere in Japan.
Somewhere in Japan, there was a man who fulfilled his dream of becoming a teacher.
Despairing of this harsh reality, the evil spirit that grew inside him attacked his students.
 
After that incident, the man reformed and decided to live a modest life, but his evil heart was awakened again when the victim’s mother became his colleague.
The man then attacks and impregnates her…

The world has fallen to Peccato Mania (original sin), which causes the victims to have urges of harming themselves and others.

To save his younger sister Christine, who has been afflicted with the disease, Rust logs in to the full-dive online game “Archetype Arcadia,” which is the sole means of stopping the disease’s advancement.

Hope, grief, joy, betrayal, and inescapable “death” are found in this game, where players convert their memories into avatars and fight.

This is a fully-voiced text novel adventure game that tells a ghastly story of overwhelming volume, guided by memories that should have been lost.

You combat weird aliens while trying to get back to your planet and meet your wife again.
However, you left your wife with your junior from work before going to space.
You can receive daily reports of how your wife is doing… with him…

Elencia, a princess and lovely flower of the kingdom, with whom the protagonist met by a finger of fate, traveled with, and swore to protect for the rest of his life.
Iris, Commander of the Imperial Guard, with whom the protagonist traveled and risked their lives to protect the princess.
Nadia, mother of Elencia and a beautiful empress, who saved the protagonist's life.

In his adventurous days after saving the princess, the protagonist of the story guards the kingdom in order to keep the heroines safe. The one he truly desired and loved was the princess—and yet, the fact that he managed to get her was nothing more than a dream.

He received a position and an honor, but he was still just one person. He lost his precious woman. Nefarious hands are drawing closer to the one he deeply loved, got out with, and became a lover with. Women get exposed before the eyes of men with different capacities and fetishes and fall into depravity.

The protagonist can only watch the heroines as they are defiled by lust. Are there zero happy endings?! This is the beginning of a full netorare adventure game!