Growing up at the Saint Thomas Academy, she wrestled with feelings of self-worth over how she had been orphaned. However, she overcame those doubts and found a purpose for her life in her service to the Church as did her adopted sister, Sasuki Yoma of Japan. It was while she trained there under a young Mother Superion, then Sister Katherine, that she first met and befriended the future Sister Sarah, her best friend; Father David Crowe, her future love interest; and Shotgun Mary. It was at this time that she visited Quagmire High School, also called Ninja High School, though at the time she yet to take her vows and was referred to simply as Shannon and not Sister Shannon. After this, she received final training from Mother Superion at Vatican City.