Endless Deep Sea

——How deep is the seabed beneath Kirishima? This is a permanent topic among humans living on the island. There is a magnificent ecosystem under the deep sea, with countless unknown crises and treasures coexisting. The seabed is said to have the power to change the fate of countless people, attracting countless people to search and explore, and generations of people enjoy it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.