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is a Japanese screenwriter, director, and manga artist. She is one of the most prolific writers currently working in the anime industry. She won the 16th Animation Kobe Award. Among her credits, Okada is best known for her writing and producing work on acclaimed anime series and films, including Toradora!, Anohana, Gosick, The Pet Girl of Sakurasou, Maquia: When the Promised Flower Blooms, and her original manga series and its anime adaptation O Maidens in Your Savage Season.