The Gremory heiress

After having a check up by Ajuka and making sure his body was fine, Sebastian was being taught the basics of how to form barriers out of demonic energy which appeared blue in colour due to his heritage of the house of Sitri.

"That's good you just need to increase the amount of demonic energy you insert to make it stable... and stop! there you go, now if you stop injecting power it will break" Ajuka was using his 'Kankara formula' to analyse the structure of the barriers and tell Sebastian how to make effective and efficient changes to the barriers be makes.

"Thats it for today I think Sebastian" He sighed and walked towards the door 'This kid has tons of potential, probably more than me when I was his age' Ajuka didnt give out comments like that all that often but this was a special case in his opinion as in the last hour Sebastion sucked up all the knowledge of barriers he had shared with him and in some areas knowingly or not improved on them in small ways.

Getting to the entrance way of the lab they both saw Lady Sitri waiting for them both, who when she saw them lit up with a smile and began walking towards them both "Hello Ajuka its been a while hasnt it" Getting a rare smile from the green haired Satan he replied in kind "It certainly has Maria I hope your well" Sebastian walked off from the conversation opting to board the carriage Lady Sitri had brought with her on the way here.

"Tell me Ajuka and honestly, how is my son?" Lady Sitri said in a tone that conveyed the seriousness of the matter 'Shes scary when she's serious' thought Ajuka, even though he was one of the 4 great satan's an angry Lady Sitri would probably be something he would run from "hes fine Maria, His potential in magic is utterly terrifying to be honest with you, he absorbed everything I said like a sponge and even filled out the gaps I left in knowingly or not" But, and with that word said Lady Sitri began to glare at the already sweating satan knowing he had to choose his next words carefully, however thankfully it wasnt terrible news. "His control over his demonic power is lacking, he either uses too much power causing the barrier to crack under the strain of the energy or uses too little and the barrier doesnt form completely leaving holes or making a weak barrier." With that said Lady Sitri retracted her glare causing the green haired Satan to let out a deep breath knowingly or not "Its a good thing you have him scheduled to train with Sirzechs, He said to me that Rias was looking forward to making a friend other than Sona, it's a shame that he prefers to concentrate solely on magic and not being a normal kid but anyway I have some work to do so until next time Maria" and with that said Ajuka walked away.

Boarding the carriage Sebastian began to look at his progress in barrier magic with the system

[Demonic power instability - 8% Managed (Warning if not dealt with before receiving evil pieces pieces body may begin to cease functions from overloading of too much demonic power) 92% left unchecked]

[Barrier magic - Novice]

After using his magic for the first time Sebastian recieved that warning from the system indicating he needed to control his demonic power, however he wasnt all that worried about failing that, with the progress he had made so far it would be in due time. And as well there was no set rule that a Devil had to receive their evil pieces on his or her tenth birthday, it was just customary too.

So Sebastian had a time limit of just under 6 years and if that failed he would wait until mastery to receive his pieces.

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It had been a few days after that and Sirzechs was finally free, if only temporarily, from the torture he called paperwork and was available to teach Sebastian for a few hours.

Teleporting directly to the Gremory mansion with their mother Sebastian looked around stunned at the vide array of flowers and other plants that dotted the labyrinth of flora that was the Gremory gardens that led to the mansion itself. Sebastian could tell what flowers were which and the details of them courtesy of his advanced knowledge of flower magic he had yet to show anyone he could

"Sonaaaaaaaa!" a loud childish voice shouted out. The source of this voice was none other than a four year old Rias Gremory charging full speed at her best friend who sidestepped her enthusiastic hug that was probably going to be bone breaking causing Rias to miss her intended target falling over. "Are you alright there Miss Gremory?" a young voice called out to her while she was on the floor, looking up slightly she saw a young boy taller than her but with a distinct feminine face that made a mix of handsome and cute, blushing slightly when she saw him but still still enough for Lady Sitri to notice 'interesting' she thought while covering her grin with her hand and giggling slightly.

Sona's 'bro senses' tingled as she looked at Rias being helped brother, she felt jealous but didnt know why, 'strange' she thought brushing it off as just an odd feeling.

"Ara ara you must be Sebastian then yes? Ara what a handsome young man you are already making Rias blush like that you bad boy" Venelana Gremory had arrived and immediately set her sights on Sebastian and Rias with a grin that could rival Lady Sitri's. Sebastian quickly felt danger when he heard the words 'ara ara' leave the mouth of Lady Gremory and immediately paled while letting go of Rias's hand much to her disappointment as she already liked the feeling of being close to him "What's wrong big brother are you feeling ok?" Sona asked seeing Sebastian pale "S-Sona I'm fine thanks let's go inside yes? that sounds nice." Sebastian quickly said trying to evade the clutches of Venelana who was walking towards the 3 devil children "Come along you two can watch Sebastian training with Sirzechs while me and Maria have some catching up to do and have a chat about certain things" she said while looking between Rias and Sebastian.