Cute af manga

Nora didn’t want to die. All she wanted, was to save a cat from drowning. When she drowned instead, she woke up in another world: Catsrule, a world ruled by cats! These aren’t your normal kitties though, they walk on two legs and look like us but we’re their pets! It’s not all milk and catnip however, soon Nora is captured and adopted by a cute cat boy who hates humans named Caesar. Can Nora return to her normal life or will she spend nine lives as a cat’s pet?

There's a story that goes like this: "Up in this castle skies is a lake, where many different kinds of flowers bloom. All of these flowers remain as buds for long periods of time. However, once, every thousand years, there is a flower that blooms with a thousand petals. That flower's scent permeats throughout the entire world. And it is said that... the one who shares the scent and the petals of this flower will attain a love that will not fade for a thousand years."