Douluo: Broken Sword Reforged, Knight Returns

[No system, not brainless, multiple female protagonists, developing power, genius flow] In his previous life, he was a mediocre migrant worker, but in this life, he is the adopted grandson of Dugu Bo. Until he awakened his martial spirit - a dilapidated [Blade of Exile] from Runeterra. That's right, it's Riven's weapon in League of Legends. Duguan knows that in this world where power is paramount. Without strength, you can't protect anything. With his continuous efforts, the broken sword will eventually be recast. The knight will eventually return. The point of his sword will rewrite the rules for this continent.