In ten days, a massive meteorite will hit the Earth. To spend his remaining time as comfortably as possible, bad-luck magnet Nishina Masumi decides to visit his university library to read books in a tranquil setting until the end comes. But this decision proves to be a mistake as he is reunited with the man from his past who broke his heart, Kusakabe Ritsu. And if things weren't bad enough, Ritsu has a favor to ask, a favor that Masumi could never have expected...