Marimo Ragawa (Japanese: 羅川 真里茂, Hepburn: Ragawa Marimo, born on September 21 in Hachinohe, Aomori) is a Japanese manga artist. She began submitting manga to comic magazines when she was only 12 years old, in the sixth grade of elementary school. She continued to send her manga to the same magazine for four years, but failed to receive a positive critical reception. Ragawa then decided to switch to a different magazine, Hana to Yume. Her first submission to this magazine won a prize called the "Top Prize" (トップ賞). Two years later in 1990, she succeeded in achieving her debut with her one-shot manga Time Limit (タイムリミット), published in Hana to Yume issue No. 22.