Transmigrate to Another World with a Big Fat Fish

This is a world where the sun has fallen, filled with spirit realms formed from countless fragments of space.

To secure room to survive, humanity formed the Purple Moon Alliance and fought a thousand-year war to the death against the northern barbarians.

The protagonist, Jiang Yuan, transmigrates here by accident. With the help of the AI Blue Whale, who transmigrated alongside him, he begins in Spirit Land No. 95, a low-level spirit realm under the Alliance's jurisdiction.

He cultivates spirit fields, practices spirit arts, raises spirit beasts, and steadily climbs to the top of the world.

"Blue, you're eating way too much! Leave some for your master!"

"Blue, use skill points to max out this spirit art."

"Blue, design me a ridiculously powerful spirit weapon."

"Blue, help me figure out whether this merfolk princess who's been following me has any ulterior intentions toward your master."

"Every achievement of mine, Jiang Yuan, comes down to my tireless hard work, day and night."

Only when Jiang Yuan finally reaches the summit of this world does he discover that it's no more than a grain of sand in the sea of stars.