- Kazuma Kuwabara: Urameshi, you died a hero's death, sacrificing your life to save billions of others. You've lit our torches and I won't let your death be in vein, even if it means I'll be joining you soon.
- Kurama: This may be the first time Hiei has been willing to die for anyone but himself.
- Shinobu Sensui: Are any of you brave enough to lead the way, attempt to finish what your late friend could not?
- Kazuma Kuwabara: Sure. Bravery's the only thing we got left.
- Kiyoshi Mitarai a.k.a. Seaman: The world didn't come to an end when the tunnel opened up, I don't think.
- Koenma: These things don't just happen in an instant. It's not like dropping an atom bomb at a certain time and place. The battle will be drawn out, and those beasts Hiei deep fried were just the first wave. More of the canon fodder will follow soon, but they aren't the ones we need to worry about. There are demons of far greater strength and intelligence lurking in the depths of Demon World, laying low and waiting until they know it's safe for them to pass through to this world. And then, they'll unleash a terror more destructive than any weapon man has ever forged, and that is how the world will end.
- Kiyoshi Mitarai a.k.a. Seaman: But what about the Kekkai Barrier? Won't that keep the really bad demons from escaping? I thought that's why they wanted Mr. Kuwabara's power, so they could use it to break the net that's in their way, but since that never happened, the barrier must still be intact, right?
- Koenma: Kuwabara will slice through it.
- Kiyoshi Mitarai a.k.a. Seaman: Why would he DO that?
- Koenma: In order to avenge his friend's death.
- Kiyoshi Mitarai a.k.a. Seaman: He wouldn't do anything that rash.
- Koenma: You obviously don't know Kuwabara.
- [Kuwabara wonders aloud how Shinobu passed through the Kekkai Barrier unharmed]
- Shinobu Sensui: As you remember, MY energy is of the sacred kind. Fortunately the brains in Spirit World only made this net to filter out demon energy. That's why I pass through unscathed while Hiei's attack burned out when it hit the net.
- Hiei: [to himself] If my best technique can't even singe his ass through this fence, how are we supposed to fight him?
- Shinobu Sensui: But you and your friend should take some consolation in the fact that THIS Kekkai is only sensitive to the energy of A- or S-class demons, which means that, in killing your friend, I've awakened the potential you've both dreamed of. Your silence is all the thanks I need. Ironically though, now that your powers are finally strong enough to match me, you can't get close.
- Botan: But, sir, Yusuke...
- Yama: Is no longer on this case. I have no choice but to call in my own men.
- Botan: The... Spirit Defense Force.
- Ogre: The SDF? Things ARE bad.
- Shinobu Sensui: This is not something I usually do - fighting opponents who I know have no chance of beating me - but I'm making exceptions for you, to offer some modicum of peace that you at least TRY to avenge your friend's death before your own.
- Shinobu Sensui: [observantly] Nothing worse than being strong but not strong enough. It only prolongs the inevitable conclusion.