A neatly dressed, polite and optimistic young "Girl with Black Hair" is out drinking at a party but soon finds herself going on an adventure in Pontocho as she moves from place to place during the after party, meeting various people from all walks of life. Meanwhile, her "Senpai (Senior)" who always had a crush on her tries to win her...

Norimichi and his friend Yuusuke are both challenged by the girl they like, Nazuna while on pool cleaning duty. She invites the winner out on a date to the see the fireworks but when things go wrong, Norimichi discovers that the glass orb Nazuna had picked up allows him to travel back in time. He decides to use it to correct the problems he...