They were not devils in the past. They were conscious beings of ma-kai (the evil world) that were reborn as messengers from the celestial sky. They were the messengers that knew light and darkness, and that could take the roles of both angels and devils with humans.
They could lead human souls to light or drop them into ma-kai (the evil world). They knew everything that happened within my companion and had the capability to cause the same thing within other humans. They created the place in my companion’s brain to stay in each human being, and occupied the place. They were called

mitama (spirit) of Judgment

by my master existence, and were born by the covenant between the celestial sky and the ground. After mitama (spirit) of Judgment descended into all humans as angels and devils, my companion wrote down uta (verse) again.

Uta (verse) of July 17th (1)
Tatsuse tatsunari
michishiruwo
mienokowaneno
tachiyueni
mihashitachinamu
yohanoneno
nenoishi
korewo
mikumitaruran
“The alter ego of Kunitokotachi”

Uta (verse) of July 17th (2)
Yukuheshirishimo
mikakerano
tachiidetaruha
anahorite
horiteyukusuhe
kannakini
waremoyukitari
nenosokoni
hitonomioyano
oyashirono
koreyukusakino
shirazu mieyazu
“Sender unknown”

Uta (verse) of July 17th (3)
Kami naki michiwo
kakeyukite
shirumo shiranumo
kore hitonoyono
shikujikushitaru
mioya
koreari
“Sender unknown”

From those uta (verses), I learned that human rei-kai (the ghost world) still kept energy at the place without light and untouched by god. And uta (verse) meaning the exercise of the next program came. My companion said that she felt the dark energy moving at the bottom of Mt. Fuji again.