[DeepL Translation - needs review] Introduction to Volume 1: Overnight, a small island was submerged underwater to the northeast of Torishima in the Izu Islands. Toshio Onodera, the operator of a deep submersible, rushes to investigate the site and, together with Dr. Tadokoro, an authority on geophysics, notices a serious anomaly occurring at the bottom of the Japan Trench.
(Translator: DeepL)
