Endless deep sea world

In the future, due to abnormal solar activity, the glaciers melt, and the world is completely covered by the ocean. Humanity has experienced countless disasters, but civilization continues on a giant ship. Qi Lin, who traveled here, spent three years there, but he has forgotten everything. He discovered that he designed and built those giant ships, and he also had a hand in the satellites in the sky. He is unexpectedly the world's number one genius. He is admired by half the world, but also hunted by half. At the same time, the calm sea surface also hides danger and murderous intent. Who am I? Who are you? Huh? I am their idol? I built this giant ship? So, why do we keep floating on the sea? Wait, you said this