Tsunahime (Editing old chapters)

Disclaimer: I don't own Katekyo Hitman Reborn, it belongs to Amano Akira.
Warning: eventual F27, All27, FemTsuna, cursing, violence

Tsunahime Sawada is the daughter of Iemitsu and Nana Sawada, she's destined to either become Vongola Decimo's little wife or the Vongola Decimo herself.

But what Iemitsu didn't know is that his little Princess is not so no-good anymore. His so called Princess is one of the strongest people in Namimori. After all, being the daughter of a mafioso is not easy.. On top of that she has a weak immune system according to the doctors. But what if her immune system is not weak? What if she has an unknown sickness? What if she was slowly dying?