Fai is healing.
Now in Nihon, the journey over, Fai is slowly healing his emotional injuries with the help from his beloved. Although the ninja is busy with the princess, with the empress and with training the other guards that have, apparently, fallen out of standard while he was gone, he always found some time to spend it with the blonde.
It is because Kurogane notices these little details that Fai loves the other man so much, because the other man knows him inside out and upside down that he could sense his emotions from imiles/i away.
With Kurogane's help, Fai is slowly healing, and starting to accept himself for who he is.
Fai is healing, and he never thought that that such a day would come.