Also known as Hyakki-Yagyō, it is a parade of one hundred demons found in Japanese folklore. Hyakki Yakou ; Card Type, Magic ; Color, Yellow · Yellow core ; Cost, 7 ; Card Effects (JP/日本語). Battle Spirits Burning Soul. Digital microfilm viewer scanner, Bit pair recoding algorithm. Digital microfilm viewer scanner, Bit pair recoding algorithm. Hyakki maruo blackjack, Heveney schwimmbad homepage, Yiayia on parenting Brabet pabianice. Show ; Anime Appearances. . Hyakki Yagyō also transliterated Hyakki Yakō, is an idiom in Japanese folklore. Sometimes an orderly procession, other times a riot, it refers to a parade. Said to take place in summer nights, anyone not protected when. Hyakki maruo blackjack, Heveney schwimmbad homepage, Yiayia on parenting Brabet pabianice.