However, Ittetsu spoke his innocence while reading bokuseki (wrinting) on the wall by a Zen priest Kido Chigu and therefore Nobunaga believed that Ittetsu was not guilty.
しかし、床にかけられた禅僧の虚堂智愚の墨蹟を読みながら自己の無実を述べたので、信長は一鉄の無罪を信じたと言う。