I know what you are thinking: “WTF?!” but I’m being death serious here. As a fan of both Maho Shojo Lyrical Nanoha and Death Note I always wonder the possibility of these two characters being related. Of course the most common assumption is that they happen to have identical lasts names but aside that are two complete different characters and they will never share anything else. Well… I disagree with that. Actually I believe that, somehow, Hayate is a relative of Light and they give us clues about it all the time. So I will point out the similitude between them and you are welcome to put your own.
1 – Their last names. This is so obvious it have to be a lie. They are both Yagami and, don’t you think is a little suspicious that Hayate’s parents are dead? Consider how many people die thanks to the Death Note I have to say there is a little possibility here. Also the fact that Sochiro Yagami, Light’s father, spends so much time out open the possibility of an adventure.
2 – Their hair. They both happen to have similar hair color and hair style. That, in much anime, make it to be either clones or siblings so… well you see my point.
3 – The books. Both of them get powerful weapons that happen to look like two innocents books… ok a note and a book but they both have covers and pages that can be used with lethal proposes.
4 – Their servants. Ignoring the fact that Hayate considers the Wolkenritter as part of her family; both she and Light have under their command some non-human creatures. Hayate the gardians ans Light his Shinigami.
5 – Their uniforms. If you see Light’s high school uniform looks like Hayate’s, just hers is a little lighter in color.
Also both of them get chosen by the laws of destiny and casualty to wheel their power and both of them use it to create a better world. What did you think?
Ah, an old theory.
Honestly, Light would be an awesome male counterpart for Hayate, sans the psychotic tendencies of course.
That's a scary thought...
Haha, a death note in MSLN?
Subaru or Teana would mistaken it for a diary and everyone would die. The End.
Vita would get her hands on it and everyone would still die. Fin.
TV Tropes had that theory on Nanoha's Wild Mass Guessing section.
The doujin Lyrical Death Note is kind of a crossover between DN and MSLN when Fate finds the Death Note and proceeds to kill everyone between herself and Nanoha. :D