[When Katsura finally emerges from the room in the office, he looks all fit to be going out as a proper Japanese lady- except maybe for the part where he isn't a lady, he has no idea why Gintoki and Kagura are that desperate for chocolate or why is he even doing this.

Except for the part where they're using Elizabeth's feathers as hostage, maybe.]

I still don't see why can't you just buy the chocolate once Valentine's Day is over. Besides that, the last sentence about neatly wrapped sweets just sounds suspicious, not that everything else here isn't.