Tōki Yanagimi is a Japanese light novelist recognized as the original creator of the anime and manga series Anti-Magic Academy: The 35th Test Platoon. Yanagimi resides in Chiba Prefecture and began writing during his junior high school years, having been significantly influenced by the visual novel ToHeart. He made his professional debut in 2007 when a short story titled Ryōsan-gata wa Date Janai received an honorable mention in the 19th Fantasia Long Novel Prize, which led to its serialization as his first light novel series.

Yanagimi's bibliography includes several light novel series published under the Fujimi Fantasia Bunko imprint. Before achieving mainstream success, he authored Ryōsan-gata wa Date Janai from 2007 to 2008, followed by Re: Baka wa Sekai o Sukueru ka? from 2010 to 2011, the latter of which was adapted into a drama CD. His most prominent work, Anti-Magic Academy: The 35th Test Platoon, was serialized from May 2012 to July 2016, spanning thirteen volumes. The series is set in an elite academy training witches and features the struggles of a ragtag platoon of misfit inquisitors. Yanagimi continued the story with a short sequel titled Anti-Magic Academy: The 35th Test Platoon 6years after, published online in 2022. His other works include Vanquish Overload from 2014 to 2015, Hero Naki Sekai ni Rasubosu-tachi o starting in 2017, and Call of Medic beginning in 2019. A newer series, BROKEN, was published in 2022.

The success of Anti-Magic Academy: The 35th Test Platoon led to multiple adaptations, demonstrating Yanagimi's significance as a creator whose work has been expanded across different media. The original light novel series inspired two separate manga adaptations. The first, illustrated by Sutarō Hanao, was serialized in Monthly Dragon Age from 2012 to 2014. The second, illustrated by Yohei Yasumura, began serialization in Monthly Comic Alive in 2015 and was later published in English by Seven Seas Entertainment as a complete omnibus edition. A twelve-episode anime television series produced by Silver Link aired from October to December 2015, and Yanagimi received credit among the writing staff for the adaptation. His work has been published internationally, with several of his series receiving English and Chinese translations. Yanagimi has expressed that his dream is to live a life where he can finish his work and then leisurely watch movies.