Ignition Flame. All of a sudden, Ken and the others disappeared in front of Emi, and their very existence was forgotten even from her memory. As if only four people were never in the world from the beginning. All that's left behind is the Friend, sadly drooping at the loss of his master. Then again, Lol receives an email from her father. Laugh is summoned to the roof of a building overlooking the city below her, and finally comes face-to-face with her father...