Omisoka
We call 31th December as "Oomisoka". I don't know why :X
Every family welcome their children or grand children coming, with unusual cuisine.
As well as, my mom bought this sashimi for my sister coming back from Osaka.
I don't remember exact amont of it, but there were a lot of people buying sashimi or sushi at market on 31th.
Maguro(Tuna), Kanpachi(maybe yellowtail) and squid sashimi. I especially like Kanpachi. Rich taste and flavor, but somehow I didn't like when I was a kid :p
I spent great time with my family with this and JApanese sake at the time.