With the skilled Ryuusui Nanami joining forces with Senkuu Ishigami's team, they are on the brink of embarking on a voyage across the oceans to the source of the strange green light that petrified humanity. A talented chef's revival ensures an ample food supply, while a revolutionary GPS reconstruction enhances safety at sea. Their preparations for the expedition run smoothly until Senkuu receives a cryptic message, propelling him to delve into the unknown. Motivated by this enigmatic communication, the scientist eagerly ventures into uncharted territories, determined to uncover scientific marvels. Despite the potential dangers that lie ahead, Senkuu remains undaunted, relying on the power of science to overcome any obstacle that may come his way.