Having inherited BB's wishes, Seigi takes Wiseman's advice and lies low in a mountain hideout for a year. Izzy and Tom have spent the year with him, along with Tamaki, who joined them on the mountain, and Seigi has finally grown strong enough to overpower Izzy. Then one day, a mysterious enemy attacks their hideout, leaving behind a video letter with footage of Arya in America, near the location of the third ruins.
We were childhood friends,
كنا أصدقاء طفولة
Wir sind Freunde
aus Kindheitstagen, …
Somos amigos de la infancia,
Somos amigos de la infancia,
On a déjà survécu à notre séparation 
quand on était enfants.
Da piccoli eravamo amici,
Nós éramos amigos de infância.