That night Nero quickly fell asleep after enjoying a bath, something that he liked to do at the end of each day in the dungeon, with him completely understanding why Yumi would want to live in a place with a large bath
"I wonder who my newest trainer will be" he wondered to himself as he materialized in the training space
"So are you ready for todays training?" Rias asked as she appeared in front of him
"Yeah" Nero answered "but first I want to get a stat boost to help me complete the current training course" looking upwards Nero shouted "I have filled the energy bar, I would like to summon my new trainer"
"Two trainers can't exist in the training space simultaniously, request denied"
"What!?" Nero complained "then do I at least get a boost like I did when I didn't have enough energy, like can you make it so that I get more time in the training space like some kind of hyperbolic time chamber"
"Negative, this system does not come with such features"
"Then what is the benefit of filling up the bar before I finish my training" Nero fumed, getting angry that all the effort that he had been putting in to filling the energy bar faster had been wasted
"No benefit is gained by gathering energy before training is finished"
"Why the hell can't I train with 2 people at once then?" Nero raged
"Training with 2 people at once would not be as efficient due to your attention being split, training produces better results by focusing on one skill set at a time"
"God and goddess freaking damn it" Nero sighed, his energy fizzling out due to having no way of of venting at the system other than shouting at it, slumping to the floor
"Well then shall we get on with the training then?" Rias said with a wry smile, internally planning on going a bit easier on him due to feeling bad for him after all of the hype he had when he had materialized in the training session
"If I can't have 2 trainers at the same time" Nero mumbled before standing up "then I'll just have to finish this training as fast as I can" a determined fire burning in his eyes "Rias, what level do I need to get to in order to finish your training?"
"Um, level 5" Rias answered, subconciously taking a step back due to Nero's intensity "you're currently on level 3"
"Then lets get to it" Nero declared, creating a sphere of destruction "I'll finish the third level tonight and finish the other 2 levels before the end of the month"
"Then give it your best shot" Rias smiled awkwardly, flying into the air and getting ready to watch over his attempts
"Ooooooohhhhhh" Nero screamed, charging towards the course
The next morning Aurathia had to come and wake up Nero due to him not coming out to make breakfast at the normal time, finding him lying in bed unable to move due to muscle pain and a massive headache that he had got from pushing himself to hard both physically and magically
"You really are an idiot" Aurathia commented, feeding him some simple porridge that she had made
"Urgh, being in a situation like this I can't really say that you're wrong" Nero admitted, having managed to finish the third level of the training course through adrenaline alone and then forcing himself to attempt the fourth level even while exhausted, leading him to overdo it to a point that even with the accelerated stamina and healing speed of the training space he wasn't able to recover before the night was over, leading to his current condition
"Training should never be overdone" Aurathia scolded him, flicking his forehead "you need to take it one step at a time"
"Hearing it from a goddess of training really makes it sink in" Nero sighed before looking around "by the way, where is Yumi?"
"She has gone into town to get some ingredients so that she can make a drink that she was given by her grandfather when training, she hasn't had to use it before now due to the fact that she is much stronger than when she used to train with him and due to her falna causing her to recover at a faster rate compared to her old world, but she thought it would help in this situation"
"I'll have to thank her" Nero smiled
"Yes, but that can wait until she gets back, for now you need to rest and recover, as your goddess I am ordering you, no training, dungeon or even using your skill to train until I say that you can" she declared
"Not even using my training space" Nero gasped in shock "but my stats improve so much faster there than in the real world, and it will help me recover faster too"
"And that's exactly why I'm not allowing it" Aurathia frowned "You're growing at way to fast a speed, from what I have heard most people take months or even years to get the stats you have" showing him his stats from the day before
Nero
Human/devil
Strength: 501 (D)
Endurance: 527 (D)
Dexterity: 619 (C)
Agility: 606 (C)
Magic: 721 (B)
Skill: System
Magic: Demonic
"You've been adventuring for half a month now and already have stats rvialing people who have spent over half a year in the dungeon, that's not safe for your body" Aurathia stated
"What about Bell and the sword princess Ais wallenstien then" Nero argued "Bell only took a month and a half to reach level 2 and the sword princess took a year and neither of them had a system backing them up"
"The sword princess seems to have spirits blood, something that sped up how fast she was able to level up" Aurathia exploded back "and from what Hestia has told me Bell seems to be special in a variety of different ways, whether it be his skills, his bloodline or the way that he was raised" Aurathia's voice getting louder "all things that you don't have, and you are pushing yourself much harder than them due to that training space of yours meaning that you are never really resting your mind and are just relying on the training space so that you don't feel tired, if you keep going at this pace your mind won't be able to keep up with your body and I will not allow that to happen" slamming a hand next to Nero's head "now you are to rest until I tell you to, or I will banish you from this Famillia" she roared
Having never seen Aurathia anywhere near to angry, let alone how furious she currently was, Nero surrendered "ok....." he said weakly "I'll rest"
"Good" Aurathia fumed, getting off of the bed "get some sleep" she ordered as she took the bowl of empty food out of the room with her, the door slamming behind her.