Long ago you had somehow ended up on an alien-planet with your friends but the problem was, that they were approximately 100 human years in the future.

You made friends, learned the culture and built a house even!

But a thing remained.

Periods.

Trolls didnt have them, due to having a completely different anatomy.

Knocking at your door as you opened and Kankri took a deep breah

"Trigger warning, questioning, not mean spirited."

"What is wrong with you for the past days?"