Oops, it doesn't look like 'best senpai day' is a national day..

Other days

Appreciate Yaself A Lil Extra Day

Ask Out Your Crush Day

Pick Me Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Cuddle Up Day

Latina Equal Pay Day

Kale Day

Gallery Day

Stress Awareness Day

Azonto Is Acceptable Day