The author of the TV anime adaptation "Isekai Picnic," a legendary masterpiece. High school student Kudou Kukuri (久遠空々梨) is on her way home when suddenly a giant meteorite strikes the Earth! Humanity is wiped out in an instant!! --When she wakes up, it's three days before the meteorite impact. In front of the confused Kukuri, her cousin Hisuuchi Nuruka (非数値无香) says that Kukuri was an agent of the interstellar intelligence organization "Recon Bureau," but due to the activation of the world line mixing device, she lost her memory and became a Japanese high school girl. With the meteorite approaching again and an alien fleet attacking, humanity is in big trouble!? A thrilling space adventure where the universe is in danger, a new edition is born! Featuring bold revisions and numerous illustrations by Tetsuya Imai (今井哲也). Additionally, it includes a newly written afterword and references by the author.