As shown in the image on the right, the right-hand part of the 'no' kanji of 'Honno-ji' is different from that of a standard character as, instead of two 'hi' katakana, it uses the character meaning 'to leave.'
右の写真のとおり、本能寺の「能」の字は右側の2つの「ヒ」が「去」のような字に替えられている。