At the Yoshinogari site, a stone tomb made of stone from the late Yayoi period was found. The lid of the tomb was opened and the investigation of the inside began.
No graves of influential people have been found so far, but traces of red paint were found in other graves. The investigation will continue for the next two weeks to see if there are any grave goods inside the tomb. The tomb is believed to have belonged to an influential person from the era when the Evil Horse Province was established.