Swapped Patterns (Canon Patchworking with Uchiha Ren Part I)

Every story has its beginning. This one begins with an end. And it all goes downhill from there.

First installment in 'Canon Patchworking with Uchiha Ren' series.
Side note: I'm trying to English-ify the Japanese aspect of fanfiction as much as I possibly can, although the honorifics (-kun, -chan, -sama, etc.) will be kept, because I have no idea how to soften names in English.
Also, it's a Self-Insert Fix-It fic. Be warned.