The continuation of TheGrayInkling's book, 'Dull Ink'. Read that before reading this book, please!

In a town filled with color, what to do with the colorless and dull? A inkling with peculiar background and dull gray ink appears in Inkopolis. Along with other strange Inklings, the citizens of Inkopolis must make a choice. Accept these strange people and let in a possible threat? Or discard them, and create a possible enemy.