At time, life can be so depressing. She is walking her usual recovery tour in Harajuku, finishing with a crepe, trying to forget that her boyfriend dumped her once again for the week-end... when the unthinkable happens... A boy stops in front of her and kisses her, in the middle of the street, before running away.

Trying to discover more about him, she is dragged into a dangerous game of mystery. A biologist has been murdered and a deadly virus is on the loose. First suspect: the mysterious Harajuku's stranger.