[Naruto] Sakura Haruno, the Mafia's Tenth Boss

When Sakura Haruno was ten, she met a baby who claimed she was destined to become the future Tenth Boss of Konoha.

"Allow me to introduce myself. My name is Sakura. I'm an assassin and a home tutor, and I've trained countless outstanding bosses. You'll be one of them, too."

Notes:

1. Only borrowing the home-tutor premise. This will not involve the home-tutor story's plot.

2. This is the ninja world, not an alternate universe. The family members have yet to be decided.

3. The pairing is undecided, but it will only be Sasori or Gaara, and possibly neither.

4. Major warnings for BL, transmigrated Sakura, gender-swapped Sakura, and self-insert Sakura. No trolling or putting characters down.

5. Sakura's experiences and ending in the original are great, but I want to make things even better for her.

Theme: Face challenges bravely.