Synopsis
In 1999, Amamori Hajime is a typical elementary school student, busy with studies and hanging out with his eccentric friends. One day, his father tests a piece of equipment he has been developing, causing an explosion that destroys their home and leaves Hajime an orphan. He is taken in by his uncle, an astronomer. At his uncle's observatory, Hajime encounters a girl he has seen before and developed a bit of a crush on. He learns her name is Yukino Yayoi, and her parents run a ramen shop in town. Even better, she works as his uncle's assistant—what luck! But Yayoi is not what she appears to be. There is a reason she helps Amamori-san at the observatory. She is the Millennial Queen (Sen-Nen Joou), chosen by her home planet LaMetal to come to Earth and help prepare for the possible destruction of the planet. What disaster is coming? LaMetal has a highly elliptical orbit that brings it extremely close to Earth every 1000 years. When it gets near, the Earth reacts, triggering widespread natural disasters. Although she was selected with LaMetal's protection in mind, her personal plan is to evacuate as many humans as possible to LaMetal, so they might survive if their own planet is destroyed. However, one person strives to stop her: the head of the Millennial Theives. Why does he want to prevent Yayoi's plan? And how does he know about the Millennial Queen in the first place?