Sawada Tsunayoshi, Vongola Decimo , and his two friends infiltrate UA high school at first just to protect one Midoriya Izuku, as time went on their protection expanded to the teachers and Pro Heroes that helped Class 1-A. What they never intended to happen was to get so involved with the class that they began to help them build their character and their quirks furthering their path to be heroes. The sports festival was the first step to being part of the class even though the three Vongola's were three to four years older than the class themselves. They and the class went on to do internships where the Vongola began to recruit a student with the ability to mind control people. Shouto Todoroki, Shinso Hitoshi, and Tokoyami Fumikage accompany Tsunayoshi to Sicily where the three will be trained to better use their quirks and participate in the 100th-anniversary celebration of Vongola being a company. Following the internships were the final exams ending the first semester. With the most interesting test being first, hyper intuition vs a quirk that calculates every possible outcome. With the final exams done the class began preparing for their summer training camp where things become chaos when villains attack the camp kidnapping Bakugou Katsuki and Pro Hero Ragdoll from the Wild Wild Pussycats. By then the villains have an idea who they are messing with when the Vongola's move into action helping the heroes create a diversion so they can rescue Bakugou even though Kirishima Ejiro, Iida Tenya, Yayzoro Momo, and Izuku Midoriya do the rescuing so All Might can fight a villain dubbed as All for One. Tsuna and his Famiglia helped with rescuing and evacuating the civilians that were caught in the debris field. All Might won the fight and finally put All for One in prison, which also ended Vongola's mission.

Sawada Tsunayoshi is a smart, good in sports and martial arts and does everything perfectly but he hides it and because of his clumsiness, he is called Dame-Tsuna. He has a lovely mother, Sawada Nana who has big brown eyes and short brown hair, a very cheerful mother that looks young. A father, Sawada Iemitsu who went to work somewhere around the world as an construction worker but actually is a CEDEF boss of the Vongola Family . He have an elder twin brother, Sawada Takayoshi who is mean, he got an average C's in exam and maybe better in sports but he's always teasing his younger twin for his need and get most attention from their mother. What will happen when Reborn came and everything is not the same as the original story line, but there will not have any OC ( other characters ) and maybe OOC ( out of character ) . [ I don't own Katekyo Hitman Reborn or it's characters ]

"Family isn't always blood. It's the people in your life who want you in theirs; the ones who accept you for who you are. The ones that would do anything just to see you smile; the ones who love you no matter what." -Anonymous

Tsuna, Sawada Tsunayoshi was a shy boy who live with his mother, Sawada Nana. His twin, Sawada Nayoshi was a skillful boy (and also a brat.) Nayoshi was very overprotective to his brother... but... After an accident, he lost all of his memories about his brother. Nayoshi started to become greedy. But why? Their mother started ignoring Tsuna also. But why? Tsuna ran away. And there, he met his new family that he will be part of. One Sky. Another Sky. And Another Sky. Vongola Sky Ring. Mare Sky Ring. Sky Arcobaleno. Who are they? And the finale... The... Who is it?

Being shot by a mysterious bullet sends Tsuna 400 years into the past, and here isn't as kind as his time. Will he make it back without having the Primo Generation find out his identity? I don't own KHR