Name: Boss ( bosu )

1st Appearance: Volume 01, Book 1

Name origin: The katakana used "bosu" represent the English approximation of the word "boss." In book two, the third page "second check," it introduces the characters. In the name "Boss" there is a subtitle "bosu to ha pen de koushin," or "correspond with the boss with the pen."

Short Overview:
Boss speaks to Minako through the transformation pen she uses to change into Sailor V. Who "boss" is for real, we never find out. Not only does he give his instructions to Minako, but helps Artemis with suggestions on how to train the new sailor soldier.

Quotes:
"You carry the protection of the fiery planet. You were born to fight. You have a mission. Only you can do it. You have been chosen by fate, Minako."

"Just call me boss," it says. "There's no time for a full explanation! That guy is an enemy! Only you can stop him. You need to transform, defeat him, and save everyone!"