Natsuki sets his heart on creating a tidal power generator that utilizes the ebb and flow of the ocean's tides. He dives back into the ocean to find some materials and salvages some resin from the ruins of Ryuuji's family's factory. As soon as he gets back he gets to work. As they are working, Natsuki and Ryuuji exchange heated opinions over how the generator should be built. Atri intervenes and the two guys become closer friends. Meanwhile, a suspicious-looking character peeks at them from outside of the school....
It's considered something that 
Humanoids have to get past.
يُعدّ هذا شيئاً على البشريّين
الآليّين أن يتجاوزوه
Es heißt, es sei das einzige „Tal“,
Se considera un valle
que los humanoides tenían que cruzar.
Se considera un valle
que los humanoides tenían que cruzar.
Pour être accepté, un humanoïde
doit nous copier parfaitement.
È un ostacolo che gli umanoidi devono superare.
Dizem que esse é um dos obstáculos
que os humanoides precisam superar.
Это одна из проблем, которую гуманоиды
должны преодолеть.
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