TyranoBuilder and TyranoScript games store player progress and variables inside the browser's LocalStorage or within .sav files.
The visual novel community has a nuanced view on save editing. Because Tyrano games are often linear stories, editing saves isn't about "cheating" as it is about accessibility .
Tyrano Save Editor (often referred to as the "Better" version or updated web-based tools) is an essential utility for players of visual novels built on the TyranoBuilder TyranoScript
If "better" means making your game's save/load screens look professional, you can bypass the default "cog" menu and build your own using .
Tyrano Save Editor Better: The Ultimate Tool for Visual Novel Development