Xia Xi had tempered his body, martial skills, and mind to their limits.
And after shattering and surpassing those limits time and again.
Only then had he finally unleashed this ultimate strike.
And in this strike, everything from the original eight planets to Pluto, the Kuiper Belt, and the Oort Cloud... had been manifested through his Breathing Style.
That dazzling, blinding pillar of light pierced horizontally across the entire land.
It engulfed Muzan.
And engulfed all the ruins behind him and the distant hilltops.
Even Xia Xi himself.
Felt his legs weaken somewhat after using this ultimate skill for the first time.
Hmm?
This strike was a little more powerful than I'd imagined.
And... it seemed to consume a little too much.
After exhausting his Psychic Power and all the strength in his body, he was not merely physically drained.
Waves of tearing pain kept coming from inside his head as well.
As he watched the Demon King's completely carbonized skeleton gradually crumble to powder in the distance.
Xia Xi felt somewhat reflective.
Poisoned by the Complex-Number Poison, and having exhausted most of his stamina and life force.
Muzan had ultimately fallen at Xia Xi's hands.
Just like all the demons he had defeated before.
A natural disaster...
That was merely this demon's praise for himself.
And at this moment, to avoid looking quite so disheveled, the Dawn Hashira.
Gripped the sword hilt with both hands and planted the [Five-Grain Way] in the ground to keep himself balanced.
But just as Xia Xi was feeling rather weak.
The panel that popped up from the system perked the Dawn Hashira right back up.
``` [Slain: Demon King · Muzan (Toshihiko Ubuyashiki)]
[Proficiency: 149857]
[Side quest completed: All demon types · Extermination]
[Proficiency: 30000]
[Dawn Breathing] lv.9 (25761/12.8) → lv.max (77618/max)
[Unity