Prologue or something...? I don't know.
"Gin-san, you haven't gone out in 9 days already."
The lump of human trash on the couch showed no reaction to the statement, choosing to play dead as if that was going to help him escape the upbringing of the topic. It was no less true. Shinpachi was starting to get irritated at his unproductive lazy boss, and Kagura had already given up on him.
"Gin-san, do something already. Otose-san is going to send Tama-chan to break this place down if we don't get some money sooner or later."
At the mention of the robotic mistress of doom, the single-celled organism sprawled across the couch stirred, but it was no use. Gintoki was deaf to the world.
"FINE! I'll do something about it!" Shinpachi yelled, and ran out the door, slamming the door shut behind him.
Gintoki slowly sat up and seemed to stare at the open world beyond the thin paper window. It's not like he could though. Light didn't seem to reach his eyes at all, and the measly little signs of life his dead fish eyes held was completely gone.
Yep.
Gintoki was blind.
But it's not like he was going to let others know.