Featuring the Trinisette Skies! Tsuna has a twin that was chosen as Vongola Decimo and he vows to protect his twin from any harm, no matter how he's treated. However, Tsuna has secrets and connections with the mafia since THAT time, blaming Iemitsu is justified. His alternate identity, duo-flames Tsuna, YUNIted and a traumatic past. Such chaos, especially with Bya-kun... (twinfic!)
Rated: T - English - Friendship/Family - Chapters: 20 - Words: 117,305 - Reviews: 199 - Favs: 470 - Follows: 562 - Updated: 9/11 - Published: 4/1/2018 - Byakuran, Tsuna/Tsunayoshi S., Uni, Vongola 1st generation