Kazuki and Juubei were childhood friends, and their fight is interspersed with flashbacks to their younger days.  Both friends wound each other badly, and Kazuki asks why Juubei, who once lived to protect Kazuki, is now helping Makubex build a bomb. Kazuki argues that it Makubex won’t be able to buy freedom from the Limitless Fortress’s “God” like Juubei expects, but instead will merely blow up the Limitless Fortress. …