A self proclaimed observer who has observed everything on this planet and knows about this battle.

The anime takes place in 2006, and centers on Akio Hoshigami, who due to a leg injury is forced to give up on her dream of being a track-and-field star. Akio and her friend Ayano Umisoe move on to high school together. Amidst new activities and meeting new friends, Akio gradually starts acting like herself again. Then one day Ayano suddenly disappears.<br>
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(Source: Anime News Network)

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Hoshi no Sadame