Ink of the Afterworld

The story follows Amber, a shy and introverted teenager who escapes into drawing to cope with the difficulties of everyday life.
One day, her sketchbook transports her into KIMINOTO, a mysterious world created from her own drawings. There, she becomes known as Starry, a figure revered almost as a goddess by the inhabitants.
Unlike the real world, where she often feels invisible, mocked, or misunderstood, KIMINOTO sees her as something precious.
However, being a creator isn't the same as being in control.
As Starry learns to use her powers, she discovers that KIMINOTO isn't merely a fantasy world. It resembles a purgatory that exists between greater realms such as Heaven and Hell. The beings living there were born from her imagination, yet many possess lives, emotions, and goals of their own.
Soon, Starry realizes that something is wrong.
Parts of KIMINOTO are changing.
Some creations behave in ways she never intended.
Others appear despite her having no memory of drawing them.
And somewhere in the world, something is watching its creator.