It is a story about a pair of sisters who work as "noroiya" (cursers) using magic in a fantasy world. One day a big tree suddenly appears in a forest, and tall buildings that look like they are from our world can be seen entangled in it. The two sisters go there to investigate and get ported to our world. They then encounter two children who are startled by the sisters' sudden appearance and rush back home but at home they see their parents turned into monsters...
Jing is a teenager who starts dating Eiam, a woman who is 20 years older than him. Things go well at the beginning of their relationship because of their optimistic attitude and strong efforts to adjust to each other's lifestyles.
Life for former United Nations investigator Gerry Lane and his family seems content. Suddenly, the world is plagued by a mysterious infection turning whole human populations into rampaging mindless zombies.
When the White House (Secret Service Code: "Olympus") is captured by a terrorist mastermind and the President is kidnapped, disgraced former Presidential guard Mike Banning finds himself trapped within the building.