・This site is related to the 1657 Christian persecution incident known as “Kori Kuzure” (large-scale arrests of Christians in Kori), in which 603 Christians hiding in Kori Village of the Omura Domain were found and arrested.
・In the Kori Kuzure incident, 131 of 406 people sentenced to be beheaded were martyred here in Hokobaru in 1658.
・On the site now stands a large monument embedded with a copper relief sculpture, in honor of the martyrs.