Senior Sister, Why Are You Getting Creepier by the Day?

The title can't be changed for now

I'm no good at writing blurbs

In her previous life, her bones were shattered, her blood drained, and the whole city was her enemy. She went to her death alone, with no one ever coming for her.

Reborn, all she wanted was to keep her younger sister safe and far from the depths of hell.

The spirit's bones were shattered, the mermaid's pearl wept blood, and a man in black secretly laid a vast conspiracy. As she traveled the four seas in search of spirit bones, a massive web of schemes slowly closed around her.

Old grudges remained unsettled, and new calamities piled on.

She had clawed her way back from the muddy abyss into the world of the living, asking only for a little light and a peaceful life,

but was forced back into a world of chaos and upheaval.