Ryouta Natsukawa is starting university and he suddenly finds out that his roommate is going to be his childhood friend, Kazuhito Tanaka. Despite Kazuhito's picture-perfect looks, he doesn't have a girlfriend. Curious as to why this is, Ryouta proposes they go on a "date" to see if he can find any issues women may have with Kazuhito. However, as Ryouta gets to know more about Kazuhito, their relationship changes. Will they just remain friends? Or will their relationship blossom into something more?

A giant meteorite is headed to Earth. It's 10 days until the end of the world...

Masumi Nishina, an office worker who has spent his days without purpose in life, visits the university library of his alma mater to spend his remaining time quietly. There, he meets Ritsu Kusakabe, the man who once hurt him deeply. What will happen to the two of them at the end of the world?