The next morning Nero woke up feeling like his whole body was made out of lead and with a pounding headache, even with the training space helping him recover at a faster speed than he would in real life
His muscles were burning due to the amount of exercise he had done, running the obstacle course time after time, before being made to do the set of exercises due to not finishing fast enough, damaging a ring or for exerting to much strength and damaging the course, something that Rias also declared that he had to do the exercises for
His mind wasn't doing much better, with Rias flying alongside him teaching him theoretical knowledge for the different types of spells that he could use, and even teaching him the mechanics of how to fly and illusion magic due to how helpful illusion magic would be against the simple minded monsters on the upper floors and could even be helpful for the lower floors
"Reading how much of a spartan instructor Rias was in the manga and novels is one thing, but experiencing it in person is something entirely different" Nero groaned as he stretched his aching limbs "and this training is going to take a long time to finish, I haven't even got close to finishing level one and she says there's five levels, and that the course will get harder and the time I have to finish it will get shorter, my best times so far was 10 times to slow, how the hell am I supposed to get that much faster while also improving the control over my magic" he sighed
Moving his aching body he made his way towards the dining hall, knowing that Aurathia would soon be back from her morning exercises
"Hey Nero, I'm back" Aurathia prounounced as she entered the door "woah, you look exhausted, tough night training?"
"Very difficult" Nero replied
"I want to here all about it as we have breakfast" Aurathia stated, grabbing the plates and utensils and spreading them out
"So is Yumi up yet?" Nero asked as he started making some rice, having decided to make something that he thought Yumi would like and something that Aurathia liked due to the rice replenishing her energy after her morning workout
"Still asleep" Aurathia answered "it seems that since you summoned her she hadn't slept due to not feeling safe and wanting to gather as much infomation as possible, so she's catching up on the sleep that she missed in order to be in the best condition"
"I'll put some food aside for her when she wakes up then" Nero commented
"No need" Yumi's voice rang out as she entered the dining hall
"Are you sure you don't need more sleep?" Nero asked
"I'm fine thank you for asking" Yumi smiled "thanks to my training I am able to operate on very small amounts of sleep, with how much I slept last night I am back to full strength, I am used to staying up for long periods of time anyway due to most of my shinobi missions taking place at night and then having had school the next day anyway" she informed to 2 as she sat down
"Good to hear" Aurathia nodded "so what are your plans for today?"
"I was planning to check out the dungeon, and I was hoping that you could guide me" she turned to Nero
"Sure, I'm not feeling in top shape today to tackling some of the upper floors sounds like a good idea" Nero yawned as he portioned out the meals
"Sounds good, but before all of that let's eat, you need some energy and then I'll update your status" Aurathia said "after our usual sparing session, hope your ready for me to knock you on your ass again" she joked
"Ha ha" Nero sighed as he brought the food across
"This looks pretty good" Yumi commented
"It should be, I was the main reason dad's diner was able to last as long as it did, he was a crap cook and I was forced to get good at cooking or be forced to eat whatever he made" Nero replied, sitting down at the table
After finishing their meal Yumi followed Nero and Aurathia outside to watch their spar, Nero lasting less time than usual due to his tired state
"You really are tired today" noted Aurathia "normally you would do much better than that" updating his status as he lay on the ground
"I was made to run an obstacle course all night while controlling a orb of magic, and if I didn't complete the course in a certain amount of time or damaged any part of the course I was made to do 100 squats, 100 push ups, 100 sit ups and a 10km run as punishment" Nero told her
"Not the most efficient strength training method but it will help if you keep doing it" Aurathi slapped his back signalling she was done "but you can't argue with the results" passing him the sheet of paper that had his stats on it
Nero
Human/devil
Strength: 283 (G)
Endurance: 294 (G)
Dexterity: 333 (F)
Agility: 324 (F)
Magic: 501 (D)
Skill: System
Magic: Demonic
"Now I know why I feel like my body is twice as heavy as usual" Nero moaned "stat increases like this don't happen without alot of effort"
"And I'm proud of you for training that hard" Aurathia smiled "now you two get going"
"Alright, see you tonight" Nero remarked, unfolding his wings and descending the mountain with much more control than the day before, landing without injury this time
"I will be off" Yumi bowed to Aurathia, eaily making her way down the cliff with trained movements that caused Nero to be stunned
"Compared to climbing skyscrapers a cliff like this is easy" Yumi smiled, giggling slightly as she walked past the still slightly stunned Nero
Sighing due to the fact that his trainer was still stronger than him even with his stats being higher, Nero did a short jog to catch up with Yumi in order to lead her to the guild to get her registered, with the dungeon waiting for the 2 of them in the distance