Dyogrammaton · The Return of the Arc-dissolve Episode 1 / 2
When a dangerous "Arc-dissolve" entity suddenly appears in Odaiba and targets the DAKT headquarters, the military is left shorthanded with most pilots away on vacation. Kyosuke and Hikaru are urgently recalled from their intimate retreat to deploy their Siegfried units and repel the attack. Amidst the chaos, a brutal interrogation regarding the secrets of "GEHENNA" suggests that the enemy's arrival may be linked to a larger conspiracy.
