The synopsis is excellent. There was enough to make a very big game but the low budget ruins the experience of the title
The low CG count and redundancy also ruins the title experience.
It also does the generic rape thing of some flimsy motivations and keeping her unwilling no-matter-fucking-what so that she only says the copy-pasted tried-and-true tired-as-fuck hentai dialogue. "I don't want him to know you forcibly kissed me, so I'll let you fuck my brains out." The typical "It feels good" to "It doesn't feel good" back and forth. And so on.
Honestly, I don't get why more NTR games like this where you're in a life and death situation don't just have a tension mechanic. In real life, when tension goes up, so does the desire to mate.
Life and death scenarios like survival or generic adventurer party delving into dungeons are full of tension-increasers, naturally making people horny enough to do something stupid because their subconscious brain doesn't care about their feelings and just wants them to fuck before they die.
Heck, that's literally how modern swapping/swinging parties got their start in real life. WW1/WW2 pilots had high death rates, resulting in high tension, and they wanted to know there'd be people who'd take care of their wife/kids if they died. So, the pilots back then would just constantly have swapping sex with each others' wives.
Instead of real world logic that would require programming an additional mechanic, these games seem to prefer hitting the low-hanging fruit stuff that you'll find in literally any generic hentai regardless of genre.
Not to mention the game not really having any consequences for just pairing Ikuya and Aina together every time. I still feel like Welcome to the Sexy Bar did "NTR Resource Management" game best, even if it also fucked up some other things. Trying to keep your girl pure in that game can actually be hard, especially if you want harem route.
I agree with you. This could've been damn good, but the low budget, poor execution, and just not fully thinking the concept through really hold it back.
Maybe if we're lucky he'll decide to make another game like this (sequel or not) that's much, much better. Or maybe someone else will do it.