"Smiling Professor," known in the English translation of the game as "Professor Smug."
A Blue Archive character, her real name is currently unknown. First mentioned by Iroha near the end of "An Unconcealed Heart" event, she makes her physical appearance in "Sheside Outside" event. She is responsible for releasing the Seven Prisoners just prior to the events of the game, though her motivation as of current remains indeterminate.
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