Ép. 4: Shu s'infiltre dans l'avant-poste de la Zone Neutre pour déserter les forces de Rekka et rejoindre Back Arrow.

A flashback to fifteen years earlier shows the young friends Shu and Kai, along with other children from their poor village, being offered to Rekka in lieu of paying taxes and forced to become soldiers. Shu decides to exploit the opportunity to succeed and change the Rekka system from within. In the present, the mercenary group of Four Friends attack and breach a Lutoh border outpost in the "Neutral Zone". Meanwhile, Sol Athin suggests the Granedger dreadnaught follows a path through the neutral zone used by traders as the best way to reach the Wall in the north. They are soon confronted by Shu and Ren with Rekka forces who launch an attack. Atlee and Arrow invoke their Briheights to engage the troops while Elsha attempts to steer the Granedger towards Bandkia in the northeast. The Four Friends invoke their Briheights and use a "decouple" spray to halt the Granedger.[c] Facing defeat, Arrow clones his Briheight into four separate versions and attacks and defeats the Four Friends' Briheights, returning them to their human forms. Shu surmises that without a single "conviction" Arrow is not limited to a single Briheight. Shu suddenly disables all of the Rekka army's weapons and Briheights, and offers to join Back Arrow and Edgar Village. Impressed by Arrow's powers, Shu orders Ren to return to the Rekka capital and report his betrayal to Zetsu Daidan. (Source: Wikipedia)

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