What is the difference between 'kotteri' and 'assari' ramen?

Kotteri and assari are two terms that are used to describe the richness of a ramen broth. Kotteri means 'rich' or 'thick,' and it's used to describe broths that are opaque, fatty, and full of flavor, like tonkotsu. Assari means 'light' or 'thin,' and it's used to describe broths that are clear and more delicate in flavor, like shio or shoyu. The choice between kotteri and assari is a matter of personal preference, and many ramen shops will offer both styles.