Saint of the Sword

Rius was a world champion in swordsmanship
He trained in every style of the sword from the old days
He had so much passion of it that he ignored everything else
Even now he trained more and more
But after he turned 25
He was diagnosed with cancer
He pushed his body over the limits which weakened his immune system
It was a severe one that wouldn’t allow him to train anymore
The doctor said that he had at least two months left before he would die
He was heart broken by this
In two months there was a blue moon
A blue moon is when 4 full moon appears in a season instead of 3
On the last day, he wished that he could train with the sword again