Hiroto and Kazami have made a small but very important improvement in their relationship. However, the Build Divers and the Resistance are now overwhelmed by the attack of the mysterious Gunpla known as "Seltsam." The pendant that Muran entrusted to Hiroto and the others seems to become a key to turn the tide, but… Meanwhile, May begins gathering intelligence at Magee's bar.
We will venture into farther depths.
سنغامر إلى أعماق أبعد
Wir wollen noch tiefere Tiefen erreichen.
Aspiraremos a llegar más hondo.
Aspiraremos a llegar más hondo.
Nous visons
de plus grandes profondeurs,
Noi ci immergeremo in ricerca 
di abissi sempre più profondi.
Nós vamos nos aventurar
em mares mais profundos.
Мы будем стремиться дальше, в глубины.