Playing the main role, Makoto Yuki lives a double a life. An average student in the day. A soldier in the night. With a story planned out, he would have just to follow the sequence of event in an orderly fashion. But that wasn't the case when a certain someone comes in to bring mysteries wherever they go. Minako Arisato.
Curious of her actions, Makoto ends up joining her parade. Doing his duty, he takes on a side quest on figuring it out. But much to his surprise, his expectations and questions are exceeded by Minako herself. How long and what ever it be, there was only a fleeting day left.
After spending a year at Kosei High School, Yusuke Kitagawa has no one to call a friend. That is until the newest honour student enrolls and a series of extraordinary things happen to him, including making his first friend.
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Basically, Yusuke's journey from before and after the Phantom Thieves, with the help of an extra friend.