The shadow puppet play “Geio” is an original work that depicts the life of a Wansei (a Japanese person born in Taiwan during the Japanese colonial period) woman living in Hualien, Taiwan, as “a history that no one knows,” with the motif of the mysterious underwater ruins of Yonaguni Island, the westernmost point of Japan. In addition to the Japanese performance, there will also be a performance in Yonaguni language, which is designated as an endangered language by UNESCO, and in 2019, songs and lines from the Sakizaya people, the indigenous people of Hualien, Taiwan, will be introduced, allowing you to experience the sound of a language that is being lost. Lin Meng-Huang is a Taiwanese author who has won numerous children’s literature awards. In a simple theatrical world, the play appeals to the senses of sight and hearing, rather than discussing important things for people to live, such as caring for others, keeping promises, the sadness brought by war, and environmental conservation. There will also be a backstage tour and a mini talk about Yonaguni Island, Taiwan, and the Sakizaya tribe. Through the shadow puppet show “Geio,” you can experience a world that is usually not accessible to many.