Every last Thursday of the month at an all-girls high school, the students of Class 2–5 cast their votes in a popularity poll. The results classify them into Grades A,…

When mysterious alien spheres start invading the world, high school students are called upon to join the world’s first war against extraterrestrial forces.

At the brink of going to hell, Yee-jae must cycle through twelve separate lives and twelve separate deaths in this reincarnation drama.