The story is really good. The miracle that happened in the Nut's life changed not only his life but also his mother's and the people around him. If in real life also people could start thinking like Tofu, I guess life would have been so different and clean. But I guess not all people can think the same and live the same life. Hence we are born differently.
But about the last episode, I still can't get why he has to die so that Tarn can live. Tofu awake because Nut cried. Though Tarn was the one who gave that teddy. And didn't Tofu was the one Nut started liking, left his past life behind to live in the present with Tofu who gave him happiness again that was the moral of the story, wasn't it?
One less star because of the ending.