Invisible
The problem with Byakugan (as with all great blessings) is that with it, one can see everything, especially the things one would rather not see (it's also a great curse).
One only has a single blind spot but that does not mean one can defend all visible attacks. One is preoccupied protecting the main house (as one lives to do) and though all too clear in one's vision a kunai is headed for one's spinal cord, duty outweighs self-preservation.
And then one cannot see a thing.
Sitting in the hospital unable to sense movement in the legs, one can see visitors drifting or swarming to and from the infirmary, all them walking past one's door. One can watch as people speak love: "Get well", "My darling", "My friend", "My child", "My mother", "My father", "Brave comrade" (but never directed at one's self).
Nerve damage calls for three to six weeks and one can witness the conditions through which visitors still come, through icy rain and turbulent winds and bitter cold (one can see the closet where an extra blanket is kept but is still immobile and too proud to ask a nurse).
One may feel lonely.
But on the other hand, one can lie back when ink creeps across the canvas sky and wonder what star shines for one's self. And one can forgive instantly when three familiar visitors (away on a mission) push through the hospital doors and come straight to one's ward (a great curse is often a blessing misapplied).
Dedicated to Incognito Temptation, master of the parenthesis! Would that I could write as I.T.