[Crossover] My Archenemy Found My Seed of Sorrow

When I was young and naive, Kyubey tricked me into becoming a magical girl. Who knew that, just one second before I was to be guided by the Law of Cycles, I'd go bam and fall into a world of ninjas and chakra?

Fair enough.

I decided to make a fresh start and live well.

Maybe there were too many transmigration bugs. I opened and closed my eyes, and bam, I was right in front of my archenemy. My Grief Seed had also been picked up by him, forcing me to become his guardian spirit.

Fair enough.

...Wait, can someone tell me how a cheerful, sunny guy turned into an unpredictable, multiple-personality masked man?!

1. Obito is the pairing.

2. Crossover, updates whenever inspiration strikes.

3. Contains OOC and alternate interpretations.

Theme: A little cowardice, kindness, and lies