Reportage writer Ayano Asama (26) covers gangs, delinquents, drugs, adult entertainment, the poverty business, the occult, and urban legends. She is constantly in trouble, being threatened by the people she interviews and being involved in illegal activities. Her parents, siblings, and acquaintances are worried about her, but Ayano continues to go her own way.
One summer day in her second year of high school, Aki sees her school's boys' baseball team playing in the Koshien (the National High School Baseball Championship), and unable to stand still, she sets her mind to start her own club. One day, Samejima, who used to play for the Japan University of Physical Education's women's softball team, comes to the school as a physical education teacher, and Aki goes to ask her to become the coach of the baseball team...
어느 평범한 방과 후, 여고생 ‘세나’는 옥상에서 깜빡 잠들고 만다. 눈을 떴을 때는 이미 주변이 어두워져 있었고, 모든 문이 잠겨 학교에 꼼짝없이 갇힌 신세가 된다. 그러던 중 갑작스럽게 정체불명의 방송이 흘러나오고, 세나는 학교에서 벌어지는 무차별 살인극에 말려들게 되는데...
