Shirokuro28
This kind of idea is always in my head and I'm just too eager to write it.
This is the story is about Nanashi Shirokuro/Me, A former Guardian of Balance from another universe that suddenly crumbles mysteriously. He successfully escaped the crumbling universe and crashed landed on the earth's surface in a child-like form in the woods. He traveled as he saw a city nearby, he then hides his animal features as he goes in the city. He traveled around the city until he became lost, he can't also use his power because he already uses it all by escaping, and because of the universe that he is connected to protect has now been crumble, that his power is also now weaker than it used to be. He walks as he accidentally bumps his future big sister Nanashi Mumei, she sees the child as she feels bad leaving him here as she brings him to her home. She doesn't know that she just brought a former Guardian because of his worn out power. Time passes as Shirokuro is now grown up and has been adopted by Mumei, and his now a junior high school student. He decided to be a normal human being (almost) and live on this universe planet. We now follow Shirokuro in his almost normal life, correction might be not that normal.