Total Concentration Breathing 

A pattern of breathing from the anime Kimetsu No Yaiba(Demon Slayer). Total Concentration Breathing allows for a Demon Slayer, people who kill demons in the anime, to gain as much strength as a demon. This also for people who have mastered this breathing to use elements type of things, like, Water Breathing, Flame Breathing, etc. It is not easy to do Total Concentration Breathing

Spoiler Alert

It is also believed that the creator of this type of breathing could use all the types of breathings, including Sun Breathing, which is believed to be the strongest of all breathings. The first Demon Slayer was related to Tanjiro Kamado and therefore Tanjiro Kamado can use Sun Breathing.

There are currently 11 types of breathings in the anime, which are, Breath of Flame, Breath of Water, Breath of Thunder, Breath of Wind, Breath of Wind, Breath Of Moon, Breath of Sun; With Breath of Moon being the only one created and used by a demon, i.e, Michikatsu Tsugikuni, or, Kokushibo.

Guy 1: "I'm going to start learning Total Concentration Breathing from today."
Guy 2: " Sure you are."

Total Concentration Breathing by fridgeSlayer September 6, 2021