There's a lot of Fantasy Story in this world, more importantly in the mind of a child a world does seems different than when he grew up. some story seems unbelievable yet so inspiring made us unable to detach our self from such thing. There are many stories out there that made people wanted them to be their story.

Movies, Novel and there still a lot of it out there to be the source of our story. All that can be achieved just by simply putting the reality into the dream. Pushing the boundaries of imagination towards the real world. Anime is one of the recent development in this case which gave life on imagination on piece of paper. 

Anime side story is just a way of understanding the story of an anime in a different perspective than what is already served. Digging deep into the characterization of the hero inside the story and also the actual side story of the "what if" scenario. More to the idea then the idea itself so  it could become a complete world. It gathers the point of view of different perspective which lead to many probable scenario