A commemorative day established on this day because the "aloha hand sign" is 🤙, and the fingers form a 131!
That is, 1 finger out, 3 fingers together and down, 1 finger out.In Hawaii, the usual greeting "Aloha", in addition to "hello" and "goodbye"...It also means "good morning", "good night", "thank you", and other various assorted meanings!
"Good morning" is written as "Ohayoumu"; the name of the series.