Naruto: Reincarnation With All Existence System

Since Ren was not very near the top of academy students in physical aspects, the exercise that Lee had given him almost made him want to faint after 20 minutes. But Ren was very medically accomplished in his past life so he knew fainting is caused by a drop in blood flow to the brain and so he upped his blood flow to not faint.

『Ding! The host has made new jutsu that isn't present in the Naruto world "Faster Blood Flow jutsu" is D-rank near C-rank you have been rewarded with 2,000 points (total now 4,085』

Then Ren started to use the Blood healing jutsu to heal his muscles and continued to do the exercises. But since Ren had very small amounts of chakra he was only able to do the jutsu for five minutes and this healed the muscles a small amount. This did heal his muscles enough that he was able to continue the exercise for 15 more minutes. After 15 minutes, Ren was completely exhausted, and both his stamina and chakra.

'Even though I can get the manual for each path���s Rank 1, I shouldn't get them because I still can't fully understand the Rank 1 vampire path so it would just take me longer to get a Rank 1 path. All Existence use 400 points to increase my vitality by 4.'

『Host's vitality stat is now at 15 (-400 points, total now 3,685)』

'With this much vitality, I should regenerate much faster. All Existence can I train in the crimson world?' - Ren

『Yes Host can train physical aspects in the crimson world but chakra can not be regenerated because there is no chakra in the crimson world, also the time in the crimson world can be sped up by 10 times for 100 points a day』

'Wait 10 times, that means if I train while sleeping for eight hours, it will be equal to eighty hours of training.' - Ren

"Hey, Lee thank you for the taijutsu help, if you ever want to spar with someone we can spar." - Ren

"Yes! I believe you can become a great taijutsu user, but I will become the best taijutsu user." - Lee

Then Ren left the forest and went back to the orphanage but beforehand he grabbed a few leaves so that he could train chakra control. After around ten minutes Ren made it back to the orphanage and rested in the bed. Then Ren fell asleep and woke up when the orphanage was giving out dinner. But since Ren had trained so much today it wasn't enough food, he went into his room and used the transformation jutsu to look like another kid got more food.

With two servings it was enough food for Ren, but he used his eyes to absorb some of the other kids' food and made All Existence not turn it into points. Then Ren walked back to his room untransformed and then grabbed out three leaves. He used his chakra to hold the leaves and after 40 minutes he could not hold the leaves any longer. After Ren exhausted all his chakra he waited a while for it to regenerate and then decided to go into the crimson world for more physical training.

Since Ren did not want people to notice he was not there, he used the transformation jutsu on some pillows and made them look like him.

'All Existence I want my physical body to go into the crimson world.' - Ren

『Host's physical body will be sent to the crimson world』

'All Existence buy the exercises that Shira used and safely combine them with the exercises that Lee gave me. It does not matter how many points it costs as long as it is under 1,000 points.' - Ren (AN: Shira is from the sand and made the Seven Heavenly Breaths, he may be a filler character)

『The exercises that Shira used have been inputted into Host's memories and combined safely with Rock Lee's exercises (-300 points, total now 3,385)』

The exercises now had more stretches and some exercise included chakra control because of Shira's silent fist.

'All Existence begin to speed up the time in the crimson world by 10 times and after eight hours wake me up' - Ren

『Time 10x sped up (100 points every two hours), set alarm that will go off in eight hours』

Then Ren began to do his eighty-hour training. Whenever Ren was out of chakra from healing his muscles or making a chakra aura, he would eat the food he stole from the other kids with his eyes. Ren had no sense of time in the crimson world so he just exercised until he felt tired and rested until he was ready to exercise again. After a while, Ren remembered that he could read the vampire path method (Rank 1) could be read while he is resting.

Ren also began to try if he could make the owl-like chakra aura, but he did not have good enough chakra control or knowledge of owls to know exactly how their feathers work. With the Blood healing jutsu healing his muscles Ren felt that he was slowly getting stronger and that he had more control over his blood, and now didn't need to infuse as much chakra with his blood to control it. Then he started to adapt his fighting style to the one-meter 360° view that the soul path gave him. After what felt like a long time Ren heard

『Eight hours have passed in the real world』

'All Existence show me all the progress I have made from the training in the crimson world' - Ren

『Name: Ren Akimasa

Age: Seven years

Race: Human (Vampire

Strength: 6.7 -----> 8.5

Agility: 5.2 -----> 7

Vitality: 11 -----> 15

Chakra: 5 (Dark Chakra: 3) -----> 6 (Dark Chakra:3 )

Chakra Control: 5.1 -----> 7

-Techniques- (Only new jutsu or updated ones are shown)

Lee (improved by 10%) and Shira exercise combined

Faster Blood Flow jutsu *NEW*

Owl chakra aura *NEW* (incomplete)』

'It seems that I have grown a lot from this, but if I do this every night it will cost me 400 points. All Existence I want to go back to the real world, so end the speeding up of time in the crimson world.' - Ren

『Leaving the crimson world. The crimson world has been sped up by 10x has now ended (-400 points, total now 2,985』