Chapter Four: The Devil Starts Night Duty

As soon as the bell rang to signal that classes were over, Yin dashed out, still perplexed about today's events. Tao didn't remember anything, Hui broke up with Tao, and both of them were acting really weird.

"Hi, little boss!" Kitsune yipped happily as a greeting once Yin was ten blocks away from her apartment flat.

Almost forgetting that she was still in public, the teenager had been thinking so much that she was startled by the sudden presence. She yelped in surprise and jumped onto the dustbin, hands out and fists clenched.

"Damn, it was just you? Scared the shit out of me," Grumbled Yin, climbing down from the dustbin and walking normally, avoiding the strange gazes people were giving her and whispered to Kitsune under her breath. "Next time, wait until I'm home before springing another trick like this on me."

The fox-spirit snorted and whisked along. "Well, anyway. I've got some news..."

"Good or bad?"

"You'll have to listen to it anyway, so just be quiet, Little Boss," Kitsune said crossly as they entered the lift. "Remember about the three Devil factions I told you about? The major ones."

Yin chuckled. "You mean Valor, Mystic and Instinct? Yeah I do." (A/N: With reference to Pokemon Go, Valor is Gremory, Mystic is Sitri, and Instinct is Phenex.)

The spirit laughed at the comparison. "Anyway, the heiress of Valor-I mean, the Gremory clan, wants you to have a trial duty tonight."

"Why should I listen to them?" Yin asked. "I personally prefer Instinct; the leader's a guy. Spark is hot anyway." (A/N: In this case, she is not referring to Phenex, but the actual Spark from Pokemon Go XD)

"Jeez, take it seriously! And anyway, Master has left instructions that you follow the Gremory Clan, and he's agreed to work with them anyway, so you don't have a choice."

The delinquent groaned to herself. This whole descendant thing wasn't going to be easy.

Issei was just finished showering when he caught sight of Rias smiling to herself, a playful twinkle in her eye.

"Eh? Buchou, why are you so happy?" He asked, toweling his damp hair. "Are the preparations for Yin-San going well?"

"Hm, let's just say, I've added a little twist to tonight's plans..."

While most people would currently be in bed by this time, Yin was dragging herself to the gates of her school, dressed in a black sweater with white zig-zag patterns and a pair of black pants with sneakers.

Kitsune surveyed her attire. "Not the most fashionable of people, are you, Little Boss?"

"I don't give a hoot about fashion, and for the last time, stop calling me Little Boss. What am I supposed to do here anyway."

"Simply put," Kitsune floated around her. "This plot of land used to be infested Devil Territory until, well, your school was built on it. So every now and then stray devils or spirits and other things wander around here. If they're harmless, just send them off. If it's a repeated offence we'll give them a stern warning after you turn them into the Ministry Of Lost Spirits/Souls, aka M.O.L.S.S. But in the case of the aggressive ones; usually the stray devils, you'll have to either exterminate, exorcise, eliminate or kill them again. Got it? Good." She watched Yin gape at her. "Oh relax, hardly any spirits come by anyway. But it's certainly been awhile since anyone did their duty."

"You mean some of the other students in my school are devils, too? Or fallen angels like Tao?" Yin climbed up the stairs to the rooftop, hopping onto it once he reached the top floor easily. "Speaking of Tao something weird happened to him today."

After listening to the young descendant's story, Kitsune nodded thoughtfully. "Someone must have made sure he lost any memory of last night's incidents. Just act normally. But the fact still remains he knows that he is a fallen angel, just that he doesn't know if anyone knows about him. I'll reckon it's the Gremory Heiress and her team. And also, there's only a small percentage of your school who belongs to the devil race; very few, in fact. I'll get going first, call me if you need my help alright?"

"How do I call you? You don't even have a phone, and it's not like screaming your name will be heard."

"I gave you an amulet, didn't I? So I'll be here at your beck and call if you need me," Winked the playful Kitsune before vanishing in front of her.

Yin took out the shiny crystal Kitsune had given her. It was a black diamond, shaped in a fox's head with delicate carvings. She had strung it together with a piece of string to hand around her neck, but she was also wearing a protective charm that Kitsune had given her, courtesy from the Laughing God.

"I swear my neck will break by the time I finish meeting all of them and they give me crystals," Grunted Yin as she started patrolling the school ground, from the rooftop's view.

It turned out alright so far. All she had found were the birds that were still flying around and chirping loudly for some reason, and a drunken man who had somehow been locked in. She knocked him out with a metal rod before heaving him over the fence, praying that he wouldn't notice the bloody scratches on his back once he woke up.

Yin realized she hadn't checked the Design and Technology block. The lab held various mishaps such as one boy accidentally drilling a hole in his hand, a girl hammering and breaking someones fingers and numerous broken work-pieces. Yin herself had fond memories of getting blinded by too much sawdust, two coping saws snapping into two and a flying wood piece that hit her teacher on the nose.

Whoosh.

Yin's sharp eyesight, now enhanced after the knowledge of her own abilities, and sense of hearing had advanced dramatically. She was sure she caught sight of a shadow leaping past her inside Lab 1.

"Who's there?" She called out, just to make sure. Suddenly, a blinding flash of light struck her eyes and stunned her momentarily, but one second was all it took for the culprit to shatter the glass windows in front of her, injecting themselves into her flesh as she cursed in pain. The broken glass now lay in smithereens on the floor. The water cooler vibrated and buzzed softly.

"Screwing up on my first day of work already? You're not gonna get away with it, friend," She hissed, plucking the shards out of her arms that had shielded her face just in time. "You wait," Yin growled, raised an open palm that closed shut into a fist, unknowingly repairing the broken glass windows as the pieces replaced themselves back into their original positions. "Just you wait."

"She's there already? Alright, I'll deal with the rest," Rias ended the call and slipped on her Kuoh uniform before rapping smartly on the bathroom door. "Issei? We're moving out soon."

The brunette came out, yawning quietly to himself. After sightseeing for a while and the early nap, Issei was still tired from having to wake up in the middle of the night to check on the Laughing God's descendant. "Her first day should go smoothly right? I mean, she's got the Vessels and more otherworldly magical powers and stuff."

"I didn't get Kitsune to teach her any of those," Rias said idly, activating a portal. "So it's up to her own ability to try and activate her powers by herself."

Issei's jaw dropped. "But you said you got an opponent ready for her. So is she going to die if she doesn't use her powers on him?!"

Rias shrugged and smiled confidently. "Issei, do you really think the future Dragon Queen Emperor would be that incompetent? I'm sure she'll do it at some point..."

"Provided she doesn't get too frazzled with her personal feelings, that is," Mumbled Issei, shaking his head in disbelief. He could already imagine a 14 year-old lying on the ground, unconscious as a male teenager stood over the girl, swords in hands.

A/N: Guesses?