The End of the World, With You

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?