The signature breathing style of muichiro tokito, mist breathing in demon slayer, evokes the concealing properties of mist, misdirecting.
Webmuichiro's body is predisposed towards mist breathing.
That's the only thing he can truly master.
Any other style, he could learn, in the same way that tanjiro's ancestors learned.
It does depend if he is capable of using it to a higher degree of skill and if that is the breathing style for him.
Even tanjiro isn’t at his best when using water.
Webmuichiro eventually learned gyokko’s major weakness:
Using the demon’s drawbacks as an advantage, muichiro unleashed his.
Webin his final moments, yuichiro revealed the meaning behind the ‘mu’ in muichiro’s name — infinity — and held onto his brother’s hand as he passed away.
Webmuichiro tokito, the mist hashira, specializes in mist breathing.
His unique form is called breath of the water:
Whirlpool or commonly known as “mist form”.
After gyokko finally shows his true form, he professes that he is undefeatable.
However, muichirou has other plans.
Webkoyoharu gotouge states in the manga that you can see the breathing style effects in universe but that they aren't real, meaning that if tanjiro did a water breathing technique,.
Webafter his brother was attacked by a demon and witnessing his final moments and death, muichiro subsequently lost his memories and has held an omnipresent rage deeply.