Story Arc

Daily Life Arc

The Daily Life Arc focuses on Tsuna's new life as Reborn enters his life and as he begins to learn about the Mafia ways. This is also when his "Family" begins to expand, and he encounters a few of the Future characters' past selves.

In this arc, Reborn gets Tsuna into all sorts of predicaments, many resulting in Reborn shooting Tsuna's forehead with the Dying Will Bullet . This bullet boosts Tsuna's physical strength and gets him out of most of his troubles, though it doesn't always turn for the better.

Kokuyo Arc

The Kokuyo Arc follows Tsuna and his Family's attempt at saving Fuuta from the Kokuyo Junior High Gang. This Arc transitions the series from an "episodic comedy" to a more action oriented series.
In this arc, Tsuna learn Hyper Dying Will Mode and got a new weapon " X Gloves "
Varia Arc

The Varia Arc mainly focuses on the introduction of the Varia, the acquiring of the Vongola Rings, Guardian titles, growth, development, and experience in combat. In this Arc Tsuna learn Zero Point Break Trough I Edition and II Edition

Future Arc

The Future Arc focuses on Tsuna and his Family traveling 10 years (specifically, 9 years and 10 months) by Lambo's Ten Year Bazooka into the Future in order to confront the Millefiore Famiglia and change the Future. This Arc introduces the concept of Box Weapons and Rings as the new fighting style. In the second half, Tsuna, Gokudera, Future Ryohei, Yamamoto, and Lal Mirch, invade the Millefiore Melone Base. They are later joined by Future Hibari , Future Kusakabe, Lambo, I-Pin, and Chrome.

Arcobaleno Trails Arc

The Arcobaleno Trials Arc, an anime exclusive Arc, happened when Tsuna and his Family traveled back to the past to obtain the Arcobaleno Seals and unlock the true power of the Vongola Rings. In this arc Tsuna and guardians got their Vongola Boxes

Choice Arc

In this arc Tsuna and Yamamota showed their Cambio Forma. Vongola Family lost at this "game". Just about to end, a singel light of hope appeared. The Sky Arcobaleno Yuni came. She join the Vongola Family to buy some time to reborn the Arcobalenos.

Inheritance Ceremony Arc

The Inheritance Succession Arc, another anime-exclusive Arc, is when Tsuna and his Family who went to the Future except Basil travels back to the Past to get stronger with the help of the Arcobalenos and obtain the Vongola's true power. In the past, the Arcobaleno, with the help of Yuni, summon the First Generation Vongola Family led by Primo, where they will then help the current Vongola Generation prove themselves worthy of inheriting the legacy of the Vongola.

Future Final Battle Arc

The Future Final Battle Arc takes place right after Choice, when the Vongola Family loses and escapes in order to protect Yuni. The final battles are about the Vongola members fighting to stop the Real Six Funeral Wreaths from taking Yuni to Byakuran
Tsuna and Family win and back to the past. Every thing back to normal. But with sacrifice of Yuni and Gamma.