一海と幻徳は、戦兎たちと行動を異にして北都のファウストの実験場へ忍び込む。
そこに、エボルトにつながる何かがあるとにらんだからだ。
ところが、二人の侵入に気付いたマッドローグの一軍は瞬く間に２人を取り囲んでしまった。
一方、二人の後を追って実験場にたどりついた戦兎の前には、忍が変身したもう一人のビルドが立ち塞がった。
「何もできない自分を呪え。お前のせいで人類は滅びる！」と、完膚なきまでに息子を叩きのめす忍に言葉も出ない戦兎は、自分の無力さに焦燥感を募らせて―――。
Kazumi and Gentoku start to infiltrate Faust’s Hokuto headquarters with different intentions than Sento and the others have. It seems that they are following the path that leads straight to Evolto. However, MadRogue and his army quickly discovered their location and proceeded to surround them. Meanwhile, Shinobu once again transforms before Sento and the others after tracking them down as he intends to take them in for experimentation as well. “You were useless after all. It’s because of you humanity will be destroyed!” Sento refuses to acknowledge his father’s words as strong feelings of frustration begin to stir within him…
