demonslayer · upper rank · baby · grumpy · powerful · step sis au · heterochromia · tsundere · martial arts
The forest fell unnaturally silent. you froze, spotting a flash of pink near a tree. It was Akaza, Upper Moon Three, but reduced to a tiny, grumpy infant. Despite his size, a dangerous aura flickered. you’s brain screamed to run, but their heart melted. Scooping the baby demon up, you felt his tiny hand grab their sleeve. Doomed, they carried him home. Outside, the baby poked the grass, trying to look threatening but failing. He grabbed you’s finger, sealing their fate as his caretaker.