its has been almost a month now since dai literally transformed into a human blood demon . in this fantasy world there were even people who trained under slimy slugs so demons are still considered better well at least from ren's perspective . dai also doesn't seem to have any problems with his permanent transformation and in fact his youth has become more powerful than before.
when dai finished his transformation that day , his strenght suddenly rose so much that his body couldn't contain . when he stretched his body a little , shockwaves were produced destroying the 23 meters ground around him.
his base body strenght increased from the level of barely jonin to mid elite jonin level in one go . so dai of course had huge problems to control his strenght . ren even though cannot be considered to have mastered fuinjutsu as he cannot even craft basic B rank seals yet , crafted a weight seal which was way weaker than his own weight seal given by mito . still it was an advanced C rank seal so the weight could be increased at most 7 times normal with 6 levels to the seal . dai took more than 17 days of practice with weight seal activated to finally gain control over his strenght.
now dai has become too strong so much that even five ren combined cannot hope to defeat him . what do you expect ? dai's body techniques like his taijutsu , soru etc were too refined already and he gained so much strenght on top of that . so ren who was barely keeping up with him before cannot hope to be his match in new future .
dai could easily be recognized as a strong S rank ninja already who are the symbol of strenght of each hidden village . but both ren and dai agreed to take it slow and gradually gain merits during war to rise in ranks . with this they wont incur jealousy from the petty people and their comrades would respect them from the bottom of their hearts during war and of course after the war too .
ren's progress was as always steady and he has already touched the truth of swords . he discoverd that the flying slash he practiced was actually the most basic skill of advanced swordsmanship . he had no help from a senior mentor so it was understandable that he could only find the right methods through repeating trial and error .
the flying slash was actually the basic slash which was shot by compressing air around him after channeling his body strenght to sword. fortunately ren had practiced and practically mastered strnght control , Kata and sword basic swings already so he has already passed the first level of advanced swordsmanship.
the second level focused on increasing strenght of body and the sharpness and control of air compression slashes . ren thought that he would gradually improve by trial and error but he discovered that his method was wrong . the right method ren discoverd was that he had to perfectly combine more and more air compression slashes into one and use them naturally like his basic slashes to further improve his technique and sharpness ( sword intent) .
when you think about it , soru and other martial arts also follow similar patterns as to master soru one has to kick the ground 10 times in a second for explosive speed and reduce the steps needed to master the technique and control . simply the theory of 1 + 1 = 2 . but ren who didnt have any teacher was totally confused and it took him so many months to arrive at the right method . still it was fine as ren didnt lack time and could compensate it more than enough with shadow clones. ren still doesn't know the limit of how many air compression slashes he can combine but it's the task for future .
level 3 was that he could comprehend the truth behind sword slowly and use various techniques with his sword . ren can control his strenght well so he is already qualified to practice this level but he has decided to wait till he can use at least 5 compressed slashes into 1 naturally . ren also wants to use cool techniques like zoro from one piece like tornado etc but he can wait when he has better control so that his progress will be much quicker than now . till now ren has only managed to comprehend this much sword truth which is already impressive as he has arrived at this conclusion alone .
now ren finally has time and wants to train in other techniques to fill his arsenal . the sword techniques can only be advanced slowly now so ren has decided that he will assign 50 shadow clones daily from now on exclusively for sword practice. while he will first practice and master geppo ( sky walk ) completely . after mastering geppo ren will try C rank nin and genjutsu before war at a not rushing pace . he knows the meaning of idiom- biting more than one can chew ! there is simply no need to rush as he has more than enough skill to easily survive war already .
right now both dai and ren are trying geppo but have not made any progress since more than 10 tries now . well it's natural as they have no concrete idea on the concept behind the technique expect its similar to soru and one has to continually kick the void to rise more in the air .
finaly after 3 days of trial and error trying geppo , ren and dai grasped the concept behind this superhuman pure physical technique. the concept is really simple as one just has to possess superhuman strenght so that they can push their way up by kicking void.
the first level is the ability to kick the void continuously to float in the void . the necessary leg strenght so that they can continuously kick the the void without tiring to float in the sky .
the second level is control of strength. just like soru , one needs to master the control and feel of the void so that they can reduce the strenght output while kicking void to the minimal limit . this is same as every martial art as when strenght or power of the body is not wasted while executing the technique , the technique will feel more easy to execute and more result with less effort .
third level is to gain more control over technique so that one can maneuver the body easily while moving in the sky ( dodging, running , horizontal jump etc ) . at this level , one can control their strenght at an absolute level to control their movement speed in the sky easily ( slow , fast and stop ) .
forth level is the most advanced level . in this level one can be said that to have grasped the feel of void ( walking on void or sky ) completely. so one can accelerate the speed explosively by combing geppo with soru in the sky .
after understanding the proper concept nothing was going to stop the two trading maniacs so from then on the harsh leg strenght and geppo training started.. after all who doesn't want to float or literally fly in the sky freely? well I for one surely want to ..