Thunderbolt Fantasy (Thunderbolt Fantasy -東離劍遊紀-, Sandāboruto Fantajī: Tōriken Yūki, lit. Thunderbolt Fantasy: Sword Travels in the East), also known as Thunderbolt Fantasy: Sword Seekers, is a Japanese-Taiwanese glove puppetry television series created and written by Gen Urobuchi and produced as a collaboration between Japanese companies Nitroplus and Good Smile Company and Taiwanese puppet production company Pili International Multimedia, creators of Pili ("Thunderbolt") series. The series began airing in Japan on July 8, 2016, and was being simulcast by Bahamut and iQiyi Taiwan in Taiwan, bilibili in Mainland China, and Crunchyroll in the United States. It has two official languages: the Taiwanese Min-Nan version aired in Taiwan, and the Japanese version aired outside Taiwan. A manga adaptation illustrated by Yui Sakuma was serialized in Kodansha's Weekly Morning magazine from July 2016, to April 2017. A second adaption, told from the perspective of Dān Fěi, and illustrated by Kairi Shimotsuki, was serialized in Akita Shoten's Champion Cross online magazine from September 2016 to February 2017. A side novel that focuses on the pasts of Lǐn Xuě Yā, Xíng Hài, and Shā Wú Shēng was released on April 7, 2017, and was partially adapted into a film released that year on December 2. A second season aired in 2018, while a film prequel to it was released on October 25, 2019. A third season aired in 2021. A fourth season aired in 2024, with a series finale film released on February 21, 2025.