Sorry if things weren't clear enough, the version currently released, which you're playing, is only a small tech demo to just show how the game will look and play. This version, as you said, has pretty much no content at all, because the project's still a work in progress with tons of unfinished content planned and underway work. When this game's version number updates from (V0.0.3), that's when there's a new update.
If you'd like to keep up-to-date with the semi-regular announcements I make, be sure to visit this channel on my Discord server, which you can find here: https://discord.gg/JVgBBDVxwv
TL;DR: This is a work-in-progress still and will have plenty of new content additions when they're finished, such as more endings, locations, and characters.
Hope this cleared things up ^^