WARNING: The following contains spoilers for Daredevil Annual #1 by Chip Zdarsky, Manuel Garcia, Le Beau Underwood, Chris Mooneyham, Rachelle Rosenberg and VC's Clayton Cowles, available now.
The title "One More Day" is one that is well known by comic book fans. In 2007, Marvel published a four-part story called "One More Day" across the Spider-Man titles. The crossover became infamous because in it, Peter Parker made a deal with Mephisto in order to save the life of his Aunt May. Mephisto saved her life but he erased Peter and Mary Jane Watson's marriage from Marvel history in return. As a result, all of Spider-Man's past had been altered, changing decades of publishing history. The reverberations of this story all still being felt to this day, and Spider-Man fans are still largely upset with it.
And now, Daredevil Annual #1, bears the very same title. Indeed, the return of "One More Day" is no accident here because just like Peter Parker, Matt Murdock's entire past gets re-written in this surprising issue.
But this time around, the history rewrite comes courtsey of Matt's twin brother, Mike Murdock.
As an individual. Michael "Mike" Murdock is a relatively new character to the Marvel Universe. He first appeared in 2018's Daredevil #606 after being brought to life by the Inhuman known as Reader. His existence is explained by the fact that when Matt Murdock first started operating as Daredevil, he lied to people and told them he had a twin brother named Mike to help hide his dual identities. But when Reader -- who has the ability to manifest anything he reads into tangible reality -- came across the identity of Mike Murdock, the Inhuman accidentally gave life to the idea of Matt's twin brother.
Of course, Matt was quick to try and undo what the Reader had done but ultimately, he chose to let his brother remain in existence. When we last saw Mike Murdock, he had joined the Hood's criminal organization after being recommended by Wilson Fisk in Daredevil #608.
As we pick up with Mike in Daredevil Annual #1, he's still working for the Hood. However, everything changes when Mike discovers that Parker Robbins possesses a Norn Stone, a powerful Asgardian artifact capable of rewriting reality.
Mike may be alive and the same age as his brother, but he's only been in existence a very short amount of time. He doesn't have real memories, or a past -- and he decides to use the Norn Stone to change all of that. After stealing the magical gem from the Hood, Mike locks himself in a room and uses it to rewrite reality, inserting himself in the past of the Marvel Universe.
Throughout the rest of the issue, we then see how Matt Murdock's history has changed. Now, he didn't grow up alone with his father anymore -- Mike was also abandoned by their mother, and he is raised by Jack Murdock alongside his twin. Matt still has the accident that leaves him blind and enhances his senses, but he's no longer looked after just by his father: his brother is also there.
While Matt goes off to school to pursue a lawyer career, Mike remains rough around the edges. He's a bit of a screw up who gets mixed in with the wrong people, but he still stands by his family despite that. And now, Matt wasn't alone to watch their father's last boxing match -- he was accompanied by Mike, who actually bet money on the outcome of the fight.
With the Norn Stone, Mike Murdock changes one corner of Marvel history to insert himself into it. He may not have changed how Matt became Daredevil, but he still rewrote a big part of his life by making him grow up with a brother.
As the issue comes to a close, it's unclear if Matt knows what Mike did, but it seems likely that he doesn't. Now that reality has just been changed, Matt probably believes that he grew up with a twin all his life, because -- as of Daredevil Annual #1 -- that's now his new history.