Tokyo, the city where you live, is being attacked by monsters that have mysteriously appeared, in the rush to escape from a giant dragon. You bump into Kaori Kimiko, help her escape from the monsters, and discover the reason why the monsters have come to Tokyo.

Kaori Kimiko: Get out of the way, the monster is coming, move from there.

You turn around scared, but there's not even time to run. Kaori Kimiko ends up falling on top of you.