The hidden tip is in the frequency distribution analysis of the ciphered text.
This is the frequency distribution plot of the text:
![](https://github.com/Hu13er/XeroCTF/raw/master/komorebi/frequency.png)
If we sort it by the frequency of the text's letters, we can see an anomaly:
![](https://github.com/Hu13er/XeroCTF/raw/master/komorebi/frequency-sorted.png)
The letters "E", "n", "N", "S", "e", "i", "I" and "T" have all been repeated 42 times.
Sorting these letters by their ASCII number gives us the string "EINSTein".