Saitou Kazuma is an average high school student that lives in Tokyo, dealing with his own procrastination problem and misfortune along the way. One day after school, while stopping by at a convenience store, he encounters a foreign girl named Alice. Alice wakes up and can't seem to remember how she ended up where she is in the first place. But to avoid being late to the bus, Kazuma decides to take her home with him. Little does he know that someone is watching them from afar...