Urasoe Chōshi was the sixth son of Prince Urasoe Chōkyō (). He was also an uncle of King Shō Nei. After Shō Nei ascended to the throne, he became a member of the "Sanshikan". He was pro-Chinese and supported his colleague Jana Ueekata. In the spring of 1609, Satsuma invaded Ryukyu and besieged Shuri Castle. Chōshi's three sons, Makaru (), Mayamado () and Momochiyo (), were killed in the battle.