The letter

Tsuna a 16 year old girl with gravity-defying brown hair with big doe brown eyes is the next Vongola boss some call her Decimo and others Vongola Neo Primo, but she is being bullied, and Nono finds out from Reborn, so them and Tsuna's guardians and friends make a plan to make them regret bullying Tsuna. BY FORMING A CLASS TRIP TO ITALY!!!

Hayato x Takeshi
Royhei x Hana
Mukuro x Chrome
And last but not least the main ship Fem!Tsuna x Kyoya