Princess Luna was banished to the moon by her sister, Princess Celestia.

But how was she banished?

What caused her to be banished?

“But you didn’t, you didn’t understand. You banished me to my own moon! You said we would always have each other’s backs. I had yours Tia, and you had mine! So I thought…” Luna said with fury, waving her hoof in the air and turning to the sun, Celestia’s Sun, trying to see it through all her tears.