Sonata wa Ittai Dare nanda summary: You are reading Sonata wa Ittai Dare nanda manga, one of the most popular manga covering in Action, Adventure, Drama, Fantasy, Mystery, Shounen genres, written by at MangaBuddy, a top manga site to offering for free. Sonata wa Ittai Dare nanda has 1 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add Sonata wa Ittai Dare nanda to your bookmark. An "unknown boy" has defeated the Demon King and saved the world. The whole world waits to learn of who he is, but it turns out the boy himself has forgotten everything. Then two people appear before him, both claiming to be his "family".