The year 2020, a few months before a comet collision will cause the end of all human life. Sisters Ayane and Kanon, who once ran away from home in 1999 when they were elementary school students, believing Nostradamus’ prophecies, start living with their half-sister Oto, for the first time.彗星の衝突により人類
The year 2020, a few months before a comet collision will cause the end of all human life. Sisters Ayane and Kanon, who once ran away from home in 1999 when they were elementary school students, believing Nostradamus’ prophecies, start living with their half-sister Oto, for the first time.彗星の衝突により人類の滅亡が数カ月後に迫った2020年。小学生だった1999年にノストラダムスの予言を信じて家出したことがある長女・絢音と次女・花音、その後生まれた異母妹の音は、初めて3人で生活することになる。
