I Transmigrated into the Uchiha and Set Out to Save Naruto’s Trash Clan

Which clan is the strongest in the Naruto world? There might be some debate. But if you ask which clan is the most useless, Li Feng will answer without hesitation: the Uchiha! They're powerful, sure, but they keep producing lunatics. As luck would have it, Li Chen transmigrates as Uchiha Chen, and the System tasks him with saving the entire Uchiha Clan. Saving one lunatic is hard enough. Now he has to save a whole clan of them? Li Chen feels like he's got his work cut out for him! So he starts pulling all sorts of baffling stunts. He gives Uchiha Itachi a good dose of corrective punches, and whenever he gets the chance, beats up every named ninja from the anime a hundred times while they're still young. When it comes to his older brother, Shisui Uchiha, he decides it's best to hit him early. As for Fugaku Uchiha, he'll take the route through his wife and get Mikoto Uchiha to whisper in Fugaku's ear. On the night of the massacre, Danzo storms into an alley with a group of men, only to find Uchiha Clan members surrounding them from every direction... Just when Li Feng thinks he's finished the mission, he suddenly discovers that this is actually a crossover world...