Tsuna is set to become the tenth generation boss of the Vongola family. In school, Tsuna has been given the harsh nickname of "No Good Tsuna," as he is very clumsy, gets low marks in school and is somewhat of a pushover. Although he is the tenth generation Vongola boss, Tsuna is unwilling to take part in anything that has to do with the Mafia. He always denies the fact that he is a future Mafia boss and tries to avoid anyone involved with the Mafia. In the Future arc he states that he would rather destroy the Vongola family than accept its bloody history. Tsuna is often surprised and horrified (for a comedic effect) at Reborn's and other mafiosos' actions. Later, even though he still wants nothing to do with the Mafia, he is grateful for the friends he has made since meeting Reborn. He cares a lot for his new "family" and would put himself in the way of danger in order to protect them. There have been many parallels that link Tsuna with the first boss and founder of the Vongola family, Giotto. Both of their personalities are likely to be very similar as it has been shown that they have similar goals and ways of standards.

Belonging to the fierce tribe of the Fanalis, descendants of the red lions originating from ''Alma torran''. She is inspired by Morgiana from the Thousand and One Nights, the intelligent slave who served Alibaba in ''Alibaba and the Forty Thieves''. Morgiana was the slave of Jamil, a young man obsessed since childhood with the idea of being king, who controlled her through mistreatment, gaining her loyalty through fear. Due to this mistreatment she became unfriendly, avoiding to show her emotions openly in order not to get into trouble. But after Goltas, another of Jamil's slaves, made her rethink the idea of no longer being a slave, she opted to leave the dungeon to return to her home of origin, the dark continent, to meet her own. Thanks to this new journey she undertook with her friends, Alibaba and Aladdin, she was able to start being herself, showing her true character and personality little by little. Although she looks like a normal girl, she can get closer with an enemy far away in an instant. In addition to her strong leg strength which can even enable her to vertically run up walls, she has a keen sense of smell on par with that of a dog's, can also smell the stench of death emanating from the bottom of the pit and the smell of someone hiding in unseen places. Although weaker than her leg strength, her arm strength is strong enough to send a human like Alibaba flying. After Alibaba's departure from Qishan, she put the words of her defector, Goltas, on her chest, and started a journey to her hometown, Katarg. In the middle of her journey towards Balbadd, she helped Leila and Sahsa's caravan to eliminate the thieves at the rock quarry. She reunites with Aladdin after that, and then joins Alibaba again in Balbadd. The name Morgiana (مرجانة) means coral in Arabic.