Utsuro no Hako to Zero no Maria, or The Empty Box and The Zeroth Maria, tells the sinister story of Kazuki Hoshi no, who is alonist Aya Otonashi , who suddenly transfers into his class—for the 13,118th ti heed to anyone else around themThis is but the start of a dark roller coaster ride that turns the two against themselves, the people around them and the one who es and they go against their ainst the world itself