My Childhood Friend Was Stolen by Other Men on a Deserted Island

This is a 3D game in which a wizard’s childhood friend is seduced.
The story has no branching points, and there is only one ending.
Play time: about 30 minutes

While traveling to a distant location for his family business, the protagonist and his part-time maid, Yuri Kashii, land on a deserted island.
Due to a certain incident, they are left behind by the ship they arrived on.
While attempting to escape the island, they run into Rize Yashiro and her maid, Noa Kirishima, who were enjoying a vacation there…

A family of four—including the protagonist’s father, his new stepmother, and her daughter, Yuzuha—sets out on a trip together for the summer holidays.
During the journey, an unknown virus breaks out on board the ship, causing a wave of illnesses. While everyone is confined to their cabins in fear, a secondary disaster strikes: the cruise ship capsizes. The family members are separated as they are swept into the sea, but in his fading consciousness, the protagonist manages to grip Yuzuha’s hand tightly.
When he wakes up, he finds himself on an island surrounded by nothing but the ocean. Dazed, he soon spots Yuzuha nearby. He rushes to her side to check on her safety; fortunately, she is uninjured and fully conscious.
And so, their survival life begins—just the two of them, alone…

One man and three women are stranded on a mysterious deserted island after a yacht wreck. The island is filled with ancient ruins and strange, magic-like powers. Amidst a scarcity of resources, a tale of sexual entanglement, mystical exploration, and tool crafting unfolds. It is an adult adventure where desire and survival intertwine, leading to a final choice: escape or eternal descent.
Gameplay
Exploration & Gathering: During the day, venture deep into the map, avoid beasts / hunt via QTE, collect materials to craft tools (fishing nets, shelters, ship parts).
Resource Management: Allocate food / stamina, upgrade camp, increase survival rate.
Girl Interactions: Raise affection through quests (e.g. hand-weaving, trap-making), trigger side stories. Unlock intimate H scenes (blowjob, titjob, cowgirl, bondage).
Goal: Accumulate resources to build a ship and escape! Balance survival and H, explore the entire map.
Multiple Endings: Full affection harem, solo romance, extreme heavy queen corruption…… High replay value, Adult survival simulation, passion and survival intertwined, conquer the island and their hearts!

Chapter 1:
“You’re the only one I can ask this of…”
Give your sincere cooperation to your childhood friend who’s always hanging out in your room and making a serious, naughty request!
From relaxing his stiff body to helping him reach the climax he was too scared to achieve on his own, support him gently or intensely.
Chapter 2:
“As a thank you for today… um… would it be okay if I did it for you?”
As a thank you for giving him so much pleasure, let him reciprocate with oral sex!
Will you gently watch over him as he tries to please you, or will you grab his head and lose your patience…?
Chapter 3:
“…I see ♡ You couldn’t hold back anymore because of me ♡”
Your childhood friend is just too perverted, and you’ve reached your limit!
It’s up to you whether you make your first time together a sweet and romantic experience, or a relentlessly intense one!