nothing against improving control of form or yang (already very high given that the rasengan is part of that branch). And I don't doubt that water manipulation is definitely useful, fujin simply CANNOT learn it at high levels. Not only does he not have the time, but also the potential to do so. Consequently, it is better if he aims for something else and does not waste time on a path in which he cannot obtain results in the 3 years he has. What you ask is the equivalent of asking a lion to swim underwater like a fish. At most it can hold its breath for a few minutes, but it will always be very clumsy compared to the fish. Maybe it's better to let the lion sharpen his claws and not his fins you say?

Simply is no worth it for him to do that. He can work in more powerful jutsu with less difficulty

after all, there is a reason why the only ninja in the series to use all natures are Kakashi and Hiruzen. It's not that they are all stupid or lazy, it is simply rare that a ninja can learn all 5 chakra manipulations, fujin simply cannot learn the nature of water, it is a limit that the author himself gave him at the beginning and it is no longer editable.

he also discovered that he is unable to use the water element even when he failed to absorb the water crystals. It's not that he hasn't tried, his compatibility with the water element is simply zero.

ok, but he already tried to learn needdle jizo and wild lions mane without success at the beginning of the novel and for him they are not learnable.

instead "wild lions mane" and "needle jizo" he tried to learn unsuccessfully when looking for defensive jutsu. And above all, why should the Earth clone learn? He already has the best clone jutsu in the ninja world, plus his earth control is the worst among his affinities. Also consider that if Hiruzen didn't teach him it is obviously of no use looking for it, and Fujin himself said that he considers focusing too much on fire and earth a waste of time (he asked Hiruzen to give him a "pre-packaged" combat system on purpose) compared to wind and lightning. He also already has an effective method of paralyzing enemies (fuinjutsu). The rest may be a feasible and sensible idea

he literally said "I haven't been able to learn water release beyond rank D". Or maybe even E grade, but I could be wrong about that last one

if instead you are referring to the moment of history. it should be 6 by the time Naruto graduates. as far as I remember

I think they've started on patreon, so less than a couple.

he became a battle maniac after the fight with darui, so his "hands itch" because he wants to fight

rereading his first chapters you discover that he dresses in black and has chain mail under his clothes, which with the ninja vest makes him immune to stray shurikens. he also has various bracelets with seals on his arms and legs

but isn't the last chapter "playing hot potato?" did you make the typo here or on patreon?😅

I'm a fan of the theory that Orochimaru didn't want to destroy the leaf, but to ensure that Hiruzen died "as a hero" and not of old age (as well as, of course, getting sasuke and so on). This is because at the end of the Konoha Crush plan in fact Konoha obtained a weaker sand village and stable ally (precisely by virtue of its collapse) and suffered relatively little damage, precisely because it killed the kasekage probably

It was a joke for Halloween

there being only one girl per team. I would say that the joke chapter has nothing to do with it.

two questions 1: How long does it take before they form teams? I do not remember. 2: in the last chapter you wrote that fujin didn't give ibiki "gifts" from katsuhiro? were you referring to the subsequent investigations? because I didn't find any captures in those chapters (if so could you point me to the chapter?)

but what gift did he give to ibiki after the fight with kitsuki? I went to reread and found nothing

the only other character he will fight is the one who uses lightning release, which the only jutsu he would need is the raikage armor, which however is difficult to reproduce with what is not even his main element. furthermore he will tend to use them little and the time spent learning and stealing these jutsu would be more useful for improving his main identity at this point, then training the wind release. also as he said in the dialogue with hiruzen, it doesn't make sense for him to waste too much time on elements other than his specialty (and lightning obviously). he has 4 years to fight madara, and I think this is his main goal, much more than developing secondary identities that only serve him on certain occasions

also what did you not understand about the previous chapters of the phrase "I don't have time to worry about the elements of earth and fire?". if it did what you wanted it would be like a plot hole the size of texas

He doesn't use water jutsu cause he can't do that! I think is the second time i write this