|This article is about a/an Fangire in Kamen Rider Kiva.|
Able to spray explosive powder from her mouth and armed with a sword, the Moth Fangire (モスファンガイア Mosu Fangaia) first appeared as her human disguise in 1986 when she fell in love with Otoya Kurenai when he was playing his violin to the flowers in a garden. However, the fact he ignored her broke her heart, and after he was only momentarily distracted by her from another woman until Yuri Aso walked up, she attacked Otoya in her Fangire form. Yuri's interference, however, forces the Moth Fangire to escape, but she vows to get back at Otoya.
She resurfaces later in 2008 as a lawyer, Aya Natsukawa, tracking down Otoya with a list of the other people he victimized 22 years ago other than herself, finding Wataru Kurenai instead to be the bearer of her wrath, sending him to meet the multitude of people wronged by the father he'd always thought was a good man. She later attempts to kill Megumi Aso at a baseball field after Megumi interrupted her attacking a runner. Kiva arrives to save her, but due to Wataru's current crisis at the time with his knowledge of his father's past, the Fangire manages to evade him. But when her two humans accomplices, also victimized by Otoya, decide to bury the hatchet after seeing Wataru's sacrifices to help them, Natsukawa turns on them and kills them. When Wataru arrives, the Moth Fangire reveals herself to Kiva as she overpowers him until the Garulu Saber is summoned, ending her vengeful life with a Garulu Howling Slash and her soul being sealed inside the Castle Doran.
- height = 172
- weight = 82
Behind the scenes
Moth Fangire/Aya Natsukawa is portrayed by Misato Tachibana (橘 実里 Tachibana Misato) the human form ,as Motth Fangire voiced is portrayed by Erina Yamazaki (山崎 依里奈 Yamazaki Erina)
- The Moth Fangire shares a suit design with the later-appearing Silkmoth Fangire with a different "antenna" splay at the back of its head.
- Her true name is The Well Named Corruption (背徳という名の井戸 Haitoku Toiu Na no Ido) and is of the Insect Class.
|Wataru Kurenai - Kivat-bat the 3rd - Demon Imperial Dragon Tatsulot - Castle Doran - Shoodoran|
|The Arms Monsters: Jiro - Ramon - Riki|
|Gear: Kivat Belt - Fuestles - Demon Imperial Sword Zanvat Sword - Machine Kivaa|
|2008: Mamoru Shima - Keisuke Nago - Kengo Eritate - Megumi Aso|
|1986: Otoya Kurenai - Yuri Aso|
|The Checkmate Four:|
|1986: Queen I - King I|
|2008: Bishop - Rook - King II - Queen II|
|Pawns: Horse Fangire - Octopus Fangire - Moth Fangire - Sheep Fangire - Ryo Itoya - Prawn Fangire - Frog Fangire - Earwig Fangire - Rhinoceros Fangire - Seastar Fangire - Ladybug Fangire - Chameleon Fangire - Grizzly Fangire - Shark Fangire - Crab Fangire - Cicada Fangire - Warthog Fangire - Moose Fangire - Horsefly Fangire - Rat Fangire - Mantis Fangire - Seamoon Fangire - Silkmoth Fangire - Polar Bear Fangire|
|Takato Shiramine - Takashi Sugimura|
|Mummy Legendorga - Medusa Legendorga - Mandrake Legendorga - Gargoyle Legendorga - Antlion Legendorga|
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