Any short 12-episode anime worth bingeing this weekend?

I’m finally free this weekend (no work, no errands 😅) and I really want to do a proper anime binge. I don’t want to start something super long like 50+ episodes because I know I won’t finish it anytime soon. I’m looking for a solid 12-episode (or around that) anime that I can complete in one weekend without feeling rushed. Open to any genre action, romance, psychological, thriller, slice of life, even something underrated. I’m okay with emotional damage too if it’s worth it 😂 What would you recommend and why? No major spoilers please 🙏