Sakura has revealed to have undergone assimilation, due to the recent alien invasion when she was caught by one of the Rare Type Festums. After the pilots defeat three Festums, they all react upon seeing Sakura hospitalized. Fumihiko confronts Tsubaki about the string of alien invasions and the island's change of weather and wildlife. The idea of integrating the Siegfried System within the Fafner Mark Sein is mentioned and discussed at the base. A new Festum appears and counters each attack of the pilots, leaving them unable to fight. Mamoru desperately attempts to immobilize the Festum, while Kazuki successfully runs the lance sword through the Festum. However, Mamoru is killed in the process. (Source: Wikipedia)

Aired on: 12/5/2004