Breathing Becomes Stronger: Save Tanjiro's Family at the Beginning

A white light flashed, and I traveled to the Demon Slayer World and became a neighbor of the Kamado family! I thought I could win by hugging Tanjiro's thighs tightly, but I was shocked to realize that not long after, it was the bloody night when Muzan Kibutsuji came to kill the clan! Seeing that tragedy was about to happen again, I decisively drew my sword! [Breathe and become stronger system has been activated! [Full concentration breathing: Energy +1, +1, +1...] As long as you breathe, you can become infinitely stronger! With one breath, cut off Wu Mei's scarlet blood claw! Take another breath and save Tanjiro's injured family! "From today on, your tragedy will be rewritten by me!" However, salvation is only the beginning. The regrets of Sister Butterfly Ninja, the Infinite Train where Brother Purgatory died, and countless unpredictable endings... The broken destiny of this world all needs to be reshaped by my breath! Take breath as the name and life as the energy. In this life, I will wave my sword and declare to all tragedies: This road is blocked!