This game has an interesting idea, but it's very weak in execution.
This is the type of game that the main character doesn't mind being sexual assaulted, and the 3 boys aren't bastard rapists, just overly horny teenagers. And over the entire length of the game, they maintained a friendly relationship. This is fine, I like it.
The thing is, the 3 boys have very little character. Interactions with them - the friendship system - is barebone. The game is 90% you running around the island, collecting everything, and occasionally stopping by to give the boys sexual relief.
And the gameplay, as I just mentioned above, it's just you running around collecting everything you see. And it is a massive grind, with very little reward in both story and sex scene. I recommend cheating for items. They have a hunger, thirst, and crafting system, but they are more of a hassle rather than engaging mechanics.
You have a lewdness system, but it only changes the dialogue in scenes, since the MC is willing to do anything right at the get-go.
You have a "choice" of escaping with low lewdness and escaping with high lewdness. Somehow high lewdness ending is a one-on-one scene while the low lewdness is a gangbang scene. You have "3" bad endings, each with every boy. But all of them are the fucking same scene, even with almost exactly the same dialogues. I played this game hoping for an ending where a high lewdness MC'd decided to stay at the island and fuck like rabbits, but no, you don't have that option.
This game is a swing and miss, it has a good concept, nice systems that aren't just vanilla RPGM, and a decent voice actress. All of it is wasted on something with too little story and scenes.