They had always been surrounded by the mafia. A vigilante group was necessary to protect their loved ones but now a familiar face comes back to town to destroy everything that they want to protect the countdown begins. Vongola and their future decimo; Tsuna's brother Tsuyoshi has come to visit.

There are many secrets to Tsuna that even he himself doesn't know about. However, he doesn't have time to figure out those secrets when dealing with Reborn in his already chaotic life. But that doesn't mean Reborn won't do his research. OOC Tsuna

There are laws.There are people who follow the law; people that break the law and people who administer the law. There are Mafia. There are mafia men who follow the law; mafia men who break the law and mafia men who administer the law. Then there is the Vongola, who follow the law and break the law. And then there is Decimo's Vongola-who defines their own law.

In a virtual world, players are to conquer 100 different parallel worlds in order to reach the title of 'boss.' Tsuna is a player of the Cielo class and a master of all weapons. His goal is to become 'boss' of all the worlds and gain the title 'Decimo' as the tenth player to attain this title. But, in the real world, he is no other than 'Dame-Tsuna,' a loser in most peoples' eyes.

fem!Tsuna. One accident three years ago changes everything for Sawada Tsunayuki when she joins the Disciplinary Committee. Now, instead of being groomed as the wife of Vongola Decimo, she is being given a chance to become the Decimo herself.

Sawada Tsunayoshi is ordinary. Average. Not at all special in any way. So while having ties to the mafia comes as a surprise to Tsuna, the fact that his younger, more talented, more popular twin brother is chosen as the next Vongola boss doesn't. Not everyone agrees though. After all, what is a world without a proper sky?

In school, Tsuna is no good. At home, he's known as "The Conqueror," the 'God of Gaming'. When the new virtual reality game, Generation X, comes out, Tsuna will have to make a famiglia that will rise through the ranks and become the most powerful and influential famiglia in the game. But enemies, classmates, and assassination squads will make that just a little bit harder.

Tsunami Sawada has a heart as big as the sky. There is room for one, two, three...four, five...six! The growth of the guardians love for their sky and how the sky is able to hold it all. Reverse harem and genderbender. femTsunaxAll.

Unsurprisingly, Tsuna is once again shot by the malfunctioning Ten Year Bazooka. When he opens his eyes, he finds himself sleeping on Hibari's lap. What's more, in this world, it seems that Tsuna's the carnivore and Hibari's the herbivore. 1827

Tsuna was abandoned and killed by his own guardians during a battle. 1 year later, when the guardians visited Japan to remember him, they met a mysterious young man called Zero Salvo. Could he possibly be their sky? Yet something seemed terribly wrong. Zero was later revealed to be keeping a deadly secret. Another shadowy man appeared and claimed to know who killed Tsuna..however..

Very slightly AU; Tsuna has finally accepted the title of Vongola Decimo. But ten years later, he disappeared leaving the Guardians and Vongola at a loss. They find him again, however something was wrong. Will the guardians be able to solve the mystery?

Memory of him as Vongola Decimo is a curse and blessing for Tsuna. He is set to choose his own path, far away from mafia world with his friends. Beside, he has his twin chosen for that throne. Reborn is not sure what to think of Iemitsu's older son. There's something hidden beneath those amber eyes of the charismatic president of Namimori Gakuen. M for violence only

Reborn had never disagreed with any of the ninth's decisions, but when the Vongola boss sent him to Japan to train Sawada Tamaki, the hitman started to think that the ninth had chosen the wrong twin…