Today is Tenichi Day

It's Tenichi Day today! I'm planning to go to a store later too! What are your recommendations, fellow Tenichi fans? I haven't tried the 'Assari' (light) or 'Miso' flavors, but are they good? Kossari (Slightly Rich) Koteiri (Rich) Koteiri MAX (Super Rich) Recommended Toppings Recommended Set How to use the provided miso? How to use the provided Tenichi soup base?