March 13th, the morning of college entrance exams. Koyomi Araragi has died due to Izuko Gaen. Mayoi Hachikuji was waiting for him in the afterlife, and guides him towards an unknown destination. Koyomi would have never thought that this certain someone would be waiting for him there.

Mayoi takes Koyomi to meet Teori, who offers him a way to return to the world of the living. Koyomi is in doubt about accepting his offer, as he believes others like Mayoi are more worthy of reviving than him, until he comes with a surprising decision.

Now fully human again, Koyomi is called by Hitagi for a date, as they spend some time together, Koyomi has a vision of Ougi.

Koyomi and Hitagi spend the rest of the date bonding further. Once back home, Koyomi has another encounter with Ougi.

Gaen assembles Koyomi, Shinobu, Mayoi and Yozuru and reveals that Ougi is the responsible for some of the previous ordeals they faced.

To stop Ougi from meddling further, Koyomi has a final confrontation with her.

After being exposed, Ougi is about to be engulfed by the darkness, but Koyomi refuses to give up on her and Meme reappears in the nick of time to save them.