It's a shame that the developer doesn't care about those with weaker devices, that doesn't mean the person can't afford the game, I waited almost two years and I'm very disappointed with this developer, I won't help anymore.
Viewing post in Final update for Light of my Life Chapter 1-7 comments
Oh, I care, and I'm really sorry that in spite of everything you tried, it's not working for you (you did try, did you? Because you wrote earlier you got an error message, and that just means you don't have enough storage to install).
But there's an awful lot of content added in this chapter (it just about doubled in size), and the bottom line is, your phone just doesn't seem to able to deal with the increased memory requirements.
Do read the instructions in this post. But if your device really is that weak (and you admit yourself it is), then it's really out of my hands.
You can find a refurbished computer for decent prices these days. They are usually 5th or 6th gen i3 or i5 desktops & laptops. While obviously not as powerful as a modern machine they will come with plenty of storage, 64 bit windows or Linux, enough RAM and a graphics card decent enough to play visual novels and older games.
And refurbished android phones are a thing, but seem comparatively more expensive