I Fish for the Future from the Abyss

Endless creatures swim through an abyss as vast as the stars.

Summon companions from ancient ages and face the unknown void.

This is a world unlike any other, where the abyss is an ocean. Everyone with a gift can summon a companion of their own from its depths.

Our protagonist transmigrated here with two souls residing in his mind. Not only did he inherit the summon beast of his predecessor, Niu Bo, but he also found a companion of his own.

He comes with a System that runs a general store where he can buy an endless variety of goods.

Sell junk, buy treasures. Grow in secret and keep a low profile while showing off.

Backed by a completed million-word novel, this story is a safe bet. Feel free to bookmark it and let it build up chapters before reading.