As a child Sakura Mamiya mysteriously disappeared in the woods. She returned safe and sound, but since then she has had the power to see ghosts. At school, her always-absent classmate shows up, and he's far more than what he seems.

Yomi Takeda was a pro pitcher of her school's team in junior high. However, she was the only ace in her club and other club's players could never catch up with Yomi, hence Yomi quits ...

In a post-apocalyptic world, each citizen has their identity branded with their own "Count," which defines their livelihood. But a mysterious figure has an agenda to steal away these Counts.