Lily, an 18-year-old bike shop employee fresh out of high school, has just developed a fascination with Fixed Gear bicycles, particularly in a brakeless style. After some practice at skidding, her chain snaps in a sudden and horrifying moment that sends her wholly careening toward an oncoming truck!

...Waking up from that horrifying steel ambush, she tries to shake the daze out of her head only to find that her confusion is here to last; she world she's in is no longer the world she once knew...!

...And to make things worse, darkness is brewing right around the corner. Could her summoning here have been intentional? Is she the one who's supposed to save the day?

...But then again, she's not exactly the type to worry.