Second Dimension Invasion

"Are we just showing up again and again for your entertainment?" "Is it inevitable that we will fail every time?" "Then, let you ignorant guys experience our terror." That day, the two-dimensional villains decided to resist. That day, countless villains crossed dimensions and came to the human world. That day, humanity learned the horror of what it had created. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.