User blog comment:B214/Volume 22 spoilers/@comment-73.46.6.122-20160819203110/@comment-154.242.164.220-20160822061101

Or was it ten thousand years? Either way, Ishibumi would've done better if he simply killed them, Sealing trihexa using their lifespan or something like that, Because having the thing like "you'll see them again don't worry!....Well it's going to be in 10,000 years though....That's just bullshit