Worldfactor: A Fish Is My Neighbour...?

Worldfactor A Fish Is My Neighbour Manga :

The stunning 35 years old siam cat-lady, Natalie Ernest-Edlaar, is living an unseen double life: A successful manager in a ruthless work environment by day, but an overworked slob at night.
Trapped in her self-made, mentally exhausting cycle to reach monetary freedom: One night, a mysterious Koi fish with foreign memories, that never happened, appears in her bathtub.
Looking for answers, while more abnormal phenomena emerge: Both begin a wondrous journey, to find the missing home of this lively visitor, that keeps messing with her daily routine.
A quest not going unnoticed by an ancient cult, chasing after a certain woman of times long passed...