I planned to release each character's stories bit by bit like a chapter at each release. I aim to progress two characters' storyline after 0.1 if my free time allows me to, but a single character's storyline at each release is most likely. So far, I always post a devlog 1 week after a release to explain what's coming next, you can keep an eye on that.
I planned to add a gallery after the last character will be introduce that will unlock some scene as you progess the story. I would like to add some animations later, but once again it depends on my free time so it's unlikely that I will add an animation anytime soon.