The Eldest Sister of the Little Monster

The story proceeds slowly and effortlessly. The protagonist and children in the orphanage also grow up slowly. It originated as a child reincarnated in another world and is still a child. Because it is the first person of the protagonist, it is easy to sympathize with him. It's a different world, but I have a novel vibe. It's fresh. I read everything. I just finished watching it and felt almost stress-free. Neither depressing nor chicken soup, but I think it's a good place. I don't know what will happen in the future but I have it bookmarked.