A message from Date family was found, so the story goes, when the boy passed through a checkpoint and he was imprisoned, only to be released on account of his 'admirable loyalty to Date.'
だが関所で伊達家との通信文が見つかりこの刺客は牢に繋がれたが、「伊達に対する忠義、天晴れなり」と刺客を解放したとの逸話が残る。