Navigator: I Have a Legendary Exploration Log

A mysterious sea has engulfed the world, and a mist obscures the sky. Humanity huddles on its shrinking islands, gazing at the vast, endless, dark green ocean, lamenting its own ignorance and the uncertainty of its fate. Where should humanity go from here? Fortunately, countless exploration ships are trying to provide answers! Chalice, who arrived here after rescuing someone from drowning, is one of those countless exploration captains. From sailor to captain… from mortal to demigod… his astonishing achievements are undoubtedly due to Chalice's own efforts, but also to the "Legendary Exploration Journal" in his mind that encourages his endless progress. [February 11th, First voyage successfully completed and arrived at Maro Island, Legendary Value +5] [June 18th, First encounter with and successful hunting of the extraordinary creature, the Strange-Shaped Worm, Legendary Value +9] [October 24th, Exploring an unknown island, discovering a mysterious cave leading to the depths of the earth, a new chapter in the log, [Divestment], has been opened] [December 29th, With the stars about to shift, unknown changes occur in the Misty Sea, revealing a narrow crevice through which ships can pass, the new route has been added to the [Sea Chart]]... The day of reckoning has finally arrived! When the indescribable ancient evil gods in the deep sea stir up towering waves! When the strange and deformed ancient beings in the mist reveal their mountain-like divine forms! Chalice belatedly realizes. This beautiful water world, on the verge of sinking, may need a new captain who will never compromise and never surrender! "May the glory of mankind endure! Set sail! Begin!!!"