I like the story but I hate this Tenko guy. His philosophy rests on the idea that the Three Families are absolute existences. He talks about being weak, but he's the strongest Tenko. Without the MC, he'd be one of the people the weak can't allow to exist. His philosophy works entirely around the idea that he is weaker than someone who is stronger than everyone else, period.
Because if his ideals play out, then there'd just be one person left in the world after all the 'getting rid of the strong'. What happens when there's two people left, and one guy can bench twenty more pounds than the other? He's insanely strong in comparison because the scale just includes the two of them. An infinite distance apart, relatively speaking. So he's got to die, too.
In short, Nadare's a fucking idiot, hypocrite, and entitled elitist. "We can't allow someone stronger than us. But we can be stronger than everyone else because we are powerful enough to say that's the way it is." Fuckin'... what?