I've never played visual novels before, but this one was very nice. I loved the gradual degradation of the human element in Charlie's life and his arc; taking everything for granted in a high, mighty and sometimes condescending manner before everything crumbles away and they realise how alone they truly are (every life counts i.e. you can't always rely solely on yourself, you need other people in your life for more than just work). The gay barista subplot was a lovely and wholesome way to plant this seed into the narrative.
I will say the writing, while structured and paced very well is also quite overwrought in execution; it thankfully gets more restrained as the plot develops and desperate frustration sets in for our main character but for the most part, almost everyone talks and behaves like they're in a flowery melodrama when the mundane setting and dilemmas eating away at the main character need something more grounded and bitter to more convincingly sell the downward spiral that the story's trajectory takes. I get that Charlie apparently reads a lot of Shakespeare (and Hunger Games too it seems), but it feels kinda ridiculous when he and the barista are both making such eloquently long-winded observations about friggin coffee lol (some interior monologues towards the start become unintentionally hilarious because of this)
This is not to demotivate you or anything; this kind of writing would be superlative for something like a period romance, imo it's also important to consider what mode of dialogue writing would work best for the story at hand. Keep at it! :)