Shō Sen'i

Shō Sen'i (c. 1430–1477) was the second ruler of the Second Shō dynasty of the kingdom of Ryukyu, based on the western Pacific island of Okinawa. He briefly ruled for six months in 1477, succeeding his elder brother Shō En. The official histories of the Ryukyu Kingdom state that Sen'i and his brother were the sons of Shō Shoku and were born on the small island of Izena, and that Sen'i left his parents at age five to live under the care of his brother. En made Sen'i the lord of Goeku, likely as a signal that he was his expected heir to the throne.

The official histories note that Sen'i's coronation ceremonies were not performed in accordance to the proper ritual, casting spiritual doubt on his reign. He allegedly resigned in 1466 and went to live at Goeku, dying less than a month later. Modern historians have attributed his short reign instead to a coup d'état by Ogiyaka, the mother of his nephew Shō Shin, who seized the throne for her son and killed Sen'i.