Disclaimer: I don't own Discworld or Rosario + Vampire
Death sat in the office of his house located outside of time and space which is actually a pretty nice place to live if your one for black skull motif, black bumblebees, and an interior that is, surprisingly, black. He had just finished doing his daily activities of colleting departed souls with some being a little less than willing than others and some outright refusing to believe that they were dead despite seeing a skeletal figure in front of them holding a scythe which confused Death as to how he could make the message any clearer.
Despite all the, metaphorically speaking for him 'head aching' work he, finished it and as previously stated sat in his office to reflect on two of his curiosities which he himself didn't really understand. He looked over at one of said curiosity on his desk and eyed it for some time watching the sand flow through it.
This curiosity was in fact a life-timer, an hour glass telling Death how much life a mortal had left. However this one was a stranger case than the rest. It belonged to the wizard Rincewind and over time it had evolved in shape from the standard hour glass shape to a multi-dimensional glass nightmare which could have been created by a glass-blower who was working on it while he had the hiccups and was in a time machine. The end shape made the sand still move downwards like it should but it now often flowed backwards, diagonally, and at irregular angles in which Death can no longer tell when he will die and as such Rincewind became a hobby to him.
He looked at it with an intuitive glance. Yes this one was most interesting but that was only one of the curiosities. He had found another one which has recently garnered his interest and to some degree horror.
ALBERT, PLEASE BRING IT, IN.
Death's voice echoed off the walls like metaphorical tombstones so that no matter where you were in the house you were bound to hear him. His manservant Albert walked in carrying something concealed under a cloth in his hand. He walked with it very carefully as if it would jump up and eat his face ferociously at any sudden movement. Albert walked over to Death's desk and placed it gingerly on the table.
"It is a most interesting case. I never thought it could happen twice."
INDEED.
Death removed the cloth and revealed yet another life-timer. The sand in this one was almost out, it was only a few grains away from running out...until it stopped. As the last grains of sand were about to descend they decided that gravity was merely just a suggestion and did not have to be actually followed so they decided to go backwards along with other grains of sand filling up the top of the hour-glass again.
AS USUAL. IT HAPPENS AT THE SAME TIME EVERYDAY. Death looked at the rising sand in the life-timer. The only other time this happened was with Rincewind's hour-glass in it's beginning stages of it's evolution to the reality defying monstrosity it is now, but that's not what interested Death. You see Death only has jurisdiction over deaths in the Discworld and one other place. It was a place where Death made regular appearances because of violent tendencies of it's inhabitants. He so called it the Yokai world because the inhabitants were monsters named Yokai, obviously.
It was here though that the event happened that peaked Death's interest. Death remembered that faithful day. A human boy from Roundworld somehow accidentally ended up in an academy in the Yokai world from a mishap thus bringing the boy within Death's jurisdiction*. Death expected the boy to die relatively soon since humans were killed as soon as they were found in it.
Death went to the room of life timers and sure enough he found the boy's hour-glass life-timer there with the grains of sand running dangerously low. He sighed (or at least he would have, had he lungs and muscles to do so) thinking it was quite a pity that such young person had to die to early but he had a duty to uphold. He mounted Binky and headed off to the academy. The sight he saw when he arrived there however intrigued him.
The boy was alive and well and had his head resting in the lap of a pink haired girl with a rosary on her neck. One would think of this as a sweet romantic moment between the two if it weren't for the blood-red sea, the dead trees, the tombstones (from other various clients of Death), and the monster that had recently tried to kill the boy that was now embedded in the rock wall in front of the two.
Death took out the boy's life-timer from his robe and inspected it seeing the sand moveing back up in it.
INTERESTING. Was all he said at the top of the cliff over looking them. He remounted Binky and rode back to his domain but as he was riding he had a suspicion that the pink haired girl might have seen him. Death thought it was just a lucky mishap and nothing more. He considered Rincewind's missed appointments the only true time he was being cheated and that the boy would die...eventually.
But as time went on he found himself coming time and time again to visit the boy after his life-timer said he was apparently dead but always came to the same sight: the monster that had tried to kill the boy was badly beaten and of all strange things their inuries included but were not limited to: Foot print marks, claw gashes, icicle kunai's, and of all things bronze pans.
Seeing this happen repeatedly gave Death déjà vu of Rincewind and how he survived many of the appointments with him that were supposed to happen to him too. This of course was a big problem for Death. He already had one person who refused to this boy survive made Death ponder a question.
ALBERT, WHY DO YOU THINK A NORMAL HUMAN HAS SURVIVED SO LONG IN A SCHOOL FOR MONSTERS?
"I don't know sir. Could he possibly be a wizard or have some special power?"
NO. HE'S JUST A NORMAL HUMAN WHO HAS SURVIVED FOR AN EXTRODIANRY AMOUNT OF TIME.
"Maybe it's the same reason that Rincewind's been able to stay alive for so long: on pure luck, or maybe someone has been helping him stay alive."
With this thought the missing pieces were starting to fall into place for Death. He remembered the first day he was supposed to die that pink haired girl was with him along with that monster stuck in the wall. She didn't look like the strong and viscous type but then again he had seen stranger more violent things such as a killer bunny, big green things with teeth, and once a very angry midget weilding a relatively large stick, and perhaps the Disc's Gods had something to do with it too, or it could have been a combination of both.
I THINK YOU MAY HAVE SOMETHING THERE ALBERT. MOUNT BINKY FOR ME, THERE'S MUCH THAT NEEDS TO BE CHECKED.
Albert walked away to mount Death's pure white horse named Binky named so because it's a nice name. As he walked towards the stables Death thought more of the interesting case of this boy and how similar it was to Rincewind's. His life-timer was showing the same symptoms that Rincewind's showed before it turned into it's current abomination and how well the boy constantly evaded scheduled appointments with him. He of course couldn't have this. It's bad enough he had one person who refused to die, the last thing he needed was another mortal delaying him and giving him false alarms. Death mounted Binky and prepared to depart before asking Albert one final question.
ALBERT I NEVER DID GET THAT BOY'S NAME. WHAT WAS IT?
Albert looked at the name written on the golden tag at the bottom of the life-timer.
"It says Tsukune Aono."
SO THAT'S HIS NAME. ALBERT PUT HIS LIFE-TIMER ON MY DESK. I BELIEVE I FOUND A ANOTHER HOBBY.
With that Death rode Binky into astral-space toward his new source of recreational enjoyment and curiosity.
*Death only has jurisdiction over the discworld as the death of universes Azrael made many deaths which are relfelctions of him to help with the deaths in many places and assigned them to that specific location. However when deciding who should be the death of the yokai world none of the deaths volunteered. It was the Death of Roundworld Death's cousin who vounteered Death for this dimension. Ever since then Death has gone out of his way to thank his cousin for the extra work load.