Has Obito Gone to a Parallel World to Experience Life Today?

When Kamui could break through the boundaries between parallel worlds, Obito began his journey and gained countless spoilers.

About the pairings: The pairings naturally vary from world to world. In most worlds, there will be Obito/Kakashi/Obito. In a few, there will be Obito/Rin, Obito/Madara/Obito, Obito/Naruto, Obito/Deidara, Hashirama/Obito... Although the author has switched to Madara/Obito, there's no denying that Obito/Kakashi/Obito is the mainstream BL pairing in Naruto, while Obito/Rin is the mainstream BG pairing. Of course, out of personal preference, the author paired this world-hopping Obito with Madara, though Madara probably won't appear until later.

Theme: One dream shared across different worlds