Quirk Control [2]

As Yuki was thinking about the hellish training him and his twin will suffer, his father said ''I will start your training right now, we will start with the basics: Push-up and sit-ups, both of you will start with fifteen of each as you never trained before, now, hurry up, the last to finish will do an extra fifteen!''

Yuki immediately started with the push-ups and finished them with little difficult, differently from his brother, that took some time and it seemed to be hard for him, before Shoto could finish the push-ups, he had already started with the sit-ups and finished it as soon as his twin started it.

Enji looked proud of his son but composed himself and said with a strict tone ''Hmph, just because you finished it faster doesn't mean you are stronger, your body needs to take your quirk temperature so you need to have a stronger body quickly before learning how to control it properly, now, do twenty squats and thirty seconds of branch!''

The white-haired boy quickly nodded as he started to do the squats, he did it in a steady pace and after around twenty seconds passed, he had already finished it, by this time, his younger, twin brother had also started with the squats and then, Yuki started to do branch.

This kept going till the end of the day, both he and his younger brother puked many times, the training started lightly and slowly became more difficult, their father was putting their body to the limit and then, breaking it.

At the end of the day, Shoto was almost crying ''Nii-san, I don't think I can take this anymore...'' and fell unconscious, for a kid that never trained before, just the fact that he was able to endure till now was something to admire 'Well, even though I don't remember my past life memories, I still died once so my endurance is higher...' was what Yuki thought, ignoring the fact that he puked many times on the training.

He even remembered the training Midoriya had to pass and thought that his father's training was more difficult than that, like this, the days passed and their training kept going, increasing little by little as their body was pushed to the limits and soon, the month passed.

Unfortunately or fortunately for them, Enji had to stop training them this month but with the constant hellish training, their bodies were finally able to take on their quirks to a certain extent, Shoto more than Yuki since his quirk is on perfect synergy, his 'Fire' part of the quirk helps on maintaining his temperature on check and the Ice does the same, his training is more to strengthen his body, different from the one to Yuki.

Yuki is training to strengthen his body too, having chakra pathways and evolved cells, his body gets stronger faster compared to any person that has a quirk, coupled with the fact that the physical body of someone from the 'Boku no Hero' universe is relatively better of someone from his previous world, his growth was relatively faster.

By the end of the month, their previously skinny body now had not so visibly outline of muscles but anyone that sees it would immediately understand that they trained before, which is something that is quite normal in this world, where there are many weird quirks, kids starting to train at four years old is relatively common.

The training that would start from now and their mother that will train Yuki and Shoto, that once again was happily smiling while talking ''Hehehe, nii-san, our training with father finally ended, it was very hard but I feel stronger, I don't know even how many times I'm stronger compared to before, I'm looking forward to what mother will teach us!''

'Poor Shoto, doesn't know that hell is coming towards us... she'll not only push us to our limits but also try to break our mind, I'm shuddering...' Yuki thought as he shuddered, thinking about the hellish training that would come towards them, if their father training was hell, their mother training would be the Ice that froze hell.

Their mother, Rei, suddenly opened the door and said ''My beloved sons, wake up because our training will start, hahaha!'' completely different from her usual calm behavior, where she talks in an elegant manner, Yuki instantly knew they are doomed...

''We already woke up, mother'' Yuki said in a slightly afraid tone, his mother is an extremely elegant lady, always speak in a calm manner, he knows that when she's suddenly talking in such cheerful manner, everyone is doomed, principally him, as his quirk is almost the same as her.

With a devilish but also elegant smile, Rei said what would bring nightmares for both Yuki and Shoto in the next four years ''Well, well... let's start our training, my beloved sons?''

With this sentence appearing constantly on their nightmares, Yuki and Shoto passed four years of the 'Icy Hell' training, having their siblings with the exception of Fuyumi, that is also training constantly, helping them.

[A/N: I won't be showing Yuki training, most things that are related to their training, will have a mention and then time skip or simply not mention it]