After accepting refreshing water samples from a sidewalk stall, three thirsty magical girls from three different cities find they have fallen victim to the same fate! The Rumor of the Misery Water promises to doom its victims to despair--and will surely do so unless Iroha and her new comrades, Kyouko and Felicia, can find it first! As the literal countdown ticks away, the girls' progress is interrupted by a group of hooded magical girls...who want to protect the Rumor?!