Maybe Tomorrow (The Day)

what happens

Furious upon hearing that he is actually a Secret who lost his memory, Truth destroys Generation Bleu's space station among thousands of satellites around the globe. The Allied Forces blame Generation Bleu for the incident and launch an attack against them. Truth takes the opportunity to infiltrate the base and attempts to steal the Quartz Gun, but is stopped by Cristophe who sacrifices himself to allow Ao and Fleur to escape.