Aika Yumeno is an ordinary, well-behaved student. Yet she finds herself tormented by the sudden lustful gazes of men. In the quiet school library, she's surrounded by wicked students and left defenseless. As a big-breasted schoolgirl, she's touched in secret behind the bookshelves, unable to resist. With her pussy teased and played with, she's forced into lewd acts while completely vulnerable. Though loud noises are forbidden in the library, she's gang-raped mercilessly by the group in cruel fashion. Writhing in overwhelming pleasure, she climaxes helplessly, her body trembling and legs giving out. The disturbing, erotic events unfolding in the silent space shake her mind to its core.