Darkside Planet: The Cuckold Records of the Strongest Big Sister Leaders

In a world where technology has advanced to the point where space exploration has become commonplace, the elite division known as the “Aotsuki” Division remains at the forefront of space exploration. Among them, the renowned 3rd Division’s commander, Seram, is unrivaled for her charisma and sterminate. Her charisma and sterminate make her unrivaled. Maria, another division commander, is just as sterminateed. Her performance also boosted the 3rd Division’s position, making it unshakable. Our protagonist, Harma, joins the 3rd Division as a new recruit. Though timid, he strives to catch up with Seram, the woman he admires and has a crush on. As the days go by, Harma takes a liking to Seram, who treats him as a pet. However, persuaded by the protagonist’s devotion, the two eventually become lovers. Maria, watching the two of them, becomes curious about what Seram’s lover is like and approaches Harma. As this continued, Maria gradually became attracted to Haruma.
And in the end, Haruma became the favorite of two of the most powerful older sisters.
Haruma savored his happiness, thinking he couldn’t be happier, but the evil hand was fast approaching…
Addendum:
We have confirmed and fixed an issue that prevented game progression due to a loop.
Fixed a bug that occurred when opening the menu after an event.
Other bugs have been fixed

Release Date: 2025-09-30
Developer: Crazy Beryl – DLsite
Censored: Yes
Version: Final
OS: Android
Language: English
Genre: Oneesan / Older Girl / Older Sister, science fiction, Pleasure Corruption, Cuckoldry (Netorare), Squirting / Gushing, Discipline, Fem-corruption, Big Breasts