Even when she's not around, thougth Keiichi, Urd managed to stir a little

trouble.<<

I don't think "trouble" would be the right word here. Disturbance? No.... Damn... It's on the tip of my tounge but I can't make it out! Something along the lines of distraction and annoyance.

  "Say, Saotome, don't panic, but..."

   "Panic?  What for, Tendo?"
   "... what if your wife watches the show?"<<

The show is on cable. I recall you said that the Saotome house could not (did not?) have cable. Later in the fic, it is confirmed that the show is on cable. You need to clear this up.

  The editors smirked.  "Ordinary people?" he asked sarcastically.

He looked to the production crew, seated nearby.<<

"Editors" plural. "He" singular. Please correct.

  Kuno roared, "THAT DANKISH BEEF-WITTED PUTTOCK!!!"

Huh? What's that?

GIRL:     QUIIIIIIIIIIIIEEEEEEEEEEET!!!!!!!

Ouch! I hope they muffled it before airing it. Might blow out some sound systems!

  Mamoru was a crusader against the forces of darkness and the occasional

Youma.  It was just one of those things, and it was pretty obvious to her 
once she caught a glance at him.  She decided that things were best left 
alone there.<<

And she isn't even batting an eye on his love life? Amazing.....
There are some spelling errors here and there also. Not too many luckily. Shouldn't be too hard to find.

I love this story. Keep it up.