Seven years after Tsuna graduated from Nami-chuu, Nezu-sensei still remembers the dame student and his trouble-maker friends. And now, it looks like he's got another nightmare in the form of one Bovino Lambo. One-shot.

Everyone has their limits in patience. Even Tsuna, the eptimome of patience and all good things that come with it has a point where he just loses his temper. Too bad the Varia and the Vongola guardians don't realise this when they decide to fight one too