There's a solid concept here, and a good amount of time was spent making the UI feel good to use, but I think it needs just a little more time in the oven. Maybe I'm just a boomer gamer, but this felt genuinely hard from the get go. I love that the sprites update to reflect current level of bondage, and the undertale influence is really cool here.
I think my main suggestion would be to have specific attacks (maybe differentiate using color) that bind, and others that damage. Same lower your health, easier to tie thing, but that little bit of knowing exactly what's coming when you get hit makes a lot of difference.
4/5 solid idea, love to see you keep working on it.