this is my favourite thing studio orange did with trigun

cuz like. YEAH! THEY ARE RLLY FUCKING SIMILAR!

Wolfwood's a kid who grew up too fast. he tries to hide behind the identity of "the punisher", a title that makes him sound like a horrible killing machine. the title screen disagrees with him though, knows deep down that kid is still inside there trying to look after his brothers and sisters. Wolfwood takes on "the punisher" in order for the eye of michael to leave the orphanage alone, so they don't have to go through what he did.

Nai is also a kid who grew up too fast. he doesn't hide behind an identity though, he embraces it. He believes that 'nai' is weak, 'millions knives' is strong and will be able to save his brother and sisters. The title screen agrees with him because it's shown how intent he is on following this path of mass destruction as he attacks and kills the workers just moments before. Knives IS Knives because of how the humans treat his siblings, because of witnessing the Last Run and Tesla. He doesn't want his brother and sisters to go through what they did.