Shichimi

Shichimi (or nanami) translates to seven flavors. They are a blend of ground red chili, black sesame, white sesame, yuzu peels, sahnsho pepper, dried seaweed, and dried ginger. It is not as spicy as the ichimi, and is often used to season hot noodles such as udon, and soba

Shichimi is originally not used in sushi, but it is used to accentuate the spicy mayonnaise sauce to give it extra spice, and texture.