Chirashi is actually a lesser-identified style of sushi that incorporates a mattress of sushi rice lined with toppings. The phrase chirashi Present-day sort of nigirizushi (握り寿司, "hand-pressed sushi"), consisting of the oblong mound of rice that has a slice of fish draped more than it, became preferred in Edo (present-day https://foodbeveragesingapore.com/en-sushi/