I think this project is worth continuing, and you’re already on the right track to improving it.
The story needs momentum to motivate the player to keep reading. I would say it currently takes too much reading before the player is able to answer the questions “What am I trying to accomplish here?” and “Why do I care what’s happening with this person?” In fact, I finished the game and I would still struggle to answer either of those questions.
The tone of the writing gave me whiplash at times. Sometimes it’s somber and contemplative, other times it’s goofy and eccentric (“dodo on rollerblades”), other times it’s cynical and kind of misanthropic (the gender selection), and other times it’s just memes. The different moods don’t segue smoothly into each other and the overall effect is that the story feels disjointed and hard to take seriously.
The word-to-meaning ratio is very high. There’s a whole lot that is said but does not do much to advance the action or tell the reader something interesting about the world/its characters.
All of these problems are eminently fixable.
As you say, adding a strong, early hook will draw players in - they need to have a sense of purpose for participating in the story.
As for the mood, I would recommend clarifying to yourself exactly what you want to the story to feel like, and changing anything that doesn’t fit that feeling. Compare the style of the first paragraph with the “omae wa shindeiru” later on - they belong in two totally different worlds.
Don’t be afraid of cutting out pieces of text that don’t serve a clear purpose. Read through the story and keep asking yourself, “What value does this part add?” If you can’t answer that question, change it or delete it. The quality, purpose, and readability of your writing are more important than the number of words you provide us with.
The cover art is gorgeous and the first paragraph pairs well with it to evoke a clear sense of mood and place. That’s a good start; I think your goal should be to follow it up by deploying the hook and building on that initial mood.