This is inspired by OhJays story "boredom" SID 6543196
Stalk your idol
Zack dared Cloud to follow Sephiroth around for the day, and came back looking like a little kid who watched a horror movie.
"He's scary…."
"Yep, that's Seph for ya"
In my story Failure to live I expanded on this idea slightly
The time, he accepted Zack's dare and started stalking Sephiroth.
"I can't believe you actually did that, man. No-wonder you're all Emo". Reno said.
I replied "I still have nightmares over his daily routine".
Back in the lifestream.
Sephiroth admitted to Angeal "I decided to mess with him, so I did some unusual stuff".
"Err, what did you do?" Angeal asked.
"Trust me you do not want to know, all I can say is this, you know Lazards pet Chocobo, let's just say I paid it a visit, and made him think its name was Cloud"
"So Seph, are you ever going to tell us what you did while Cloud was stalking you?"
"Zack, I have told you, you do not want to know.
"Pretty please?"
"Very well, if I tell you one thing will that satisfy you?"
"For now yes."
"Fine, ok I noticed cloud hidi..."
"Wait!, Angeal and Genesis want to know too, you gotta tell them too."
"Ok" They go to find Angeal and Genesis,
"Angeal! Genesis! Sephiroth said he'll tell us everything he did while while Cloud was stalking him."
"Zack, I agreed to tell you one thing."
"I know but I know you, once you start you'll want to continue" Sephiroth looked amazed, how did Zack know that?
"Ok, I woke planning on my usual routine, when I noticed a stock of blonde spiky hair behind the bush outside my room, and I knew it was cloud..."
Flashback
Sephiroth left his apartment, and headed straight to the training centre, and programmed the Crisis Core starting mission, only the opponents all had all had clouds head, but sephiroth had it set to the highest level. Instead of the behemoth he fought 2 level 45 Dragons also with Clouds head.
While watching Sephiroth training in the observation room, cloud noticed his head on all the enemies and monsters, and started to freak out, did he do this every day, is he pickng on him personally, or does he know I'm watching, or is he doing this to show Zack later?
After completing his training, which had Clouds head on more and more weird creatures, Sephiroth went to have breakfast.
End Flashback.
"Wait Seph, you used Cloud's head on ALL the opponents?"
"Yeah, I wanted to freak Cloud to make him stop following me, but that didn't work"
"So what did you do next?"
"I paid Lazards pet Chocobo a visit, and called it Cloud"
"Wait, you called Chocy, Cloud?"
"Yes"
"You gotta tell us about that.. please!"
"Sorry guys, I got to go"
"Go where we're dead in the lifestream"
"errr.. Zack is that Aerith with Kunsel?"
"What! Where.. Aerith?.. Seph that's not Aerith.. that's Kunsel's sister.. Seph where'd you go?"
What do you guys think? Do you want me to continue? I am accepting suggestions as to what Sephiroth did while Cloud was stalking him.
In the Game FF7 the Dragons where only level 32, since during FF7 in the flashback Sephiroth was level 50, I took the Dragon to 45 to give Sephiroth a challenge.