You mean Youmu-chan's featured holiday last year? (post #7478901)
It's kind of goopy and sticky but...September 11th is Protein Day!This holiday was established to commemorate the fact that there are nine essential amino acids and 11 non-essential amino acids that make up the human body!Is this really something that can be drank?A certain secret fluid
from her ghost-half.It's probably not relevant here, but ◯men only contains a small amount of protein.