I barely remember anything, damn. Oh well, if I don't remember the plot threads, the readers won't either. 1,815 days and counting, bloody hell. A kid could have gone through a school. Or two uni degrees.
You guess the sauce were meant to lend flavour to the otherwise unseasoned slices of salmon, like ketchup with fries. You spear a piece with your fork, dip it into the green sauce and pop it into your mouth.
"Ah-! Anna, the wasabi- oh."
…
You have greatly underestimated the fortitude of the Japanese people.