Izanami takes her name from one of Japan's creation gods. She is not a Shadow but something similar to an embodiment of culture shared between people in a specific region.[1] Izanami can exert her power over the entire area of Inaba.[1] She disguises herself as the Moel Gas Station Attendant and, using her powers, kicks off the events of Persona 4 by giving three outsiders the ability to enter the TV World and spreading a rumor about the Midnight Channel.[2][3][4] In doing so, she hopes to stir something in the insular mountain town,[5] and test humans' desire for the truth after witnessing their inability to think critically.[6]
For Izanami's design, Shigenori Soejima made her boss forms based on the story of Izanagi and Izanami, and how one must look for the truth. Thus, the first form hides the second form, and it's not really a "transformation" like with other final bosses, but more like something being revealed.[7]
On March 20th, when the protagonist exits the Velvet Room, it begins raining in the Central Shopping District and he sees the Moel Gas Station Attendant. The protagonist questions the attendant about Namatame and Adachi before asking if they were responsible for giving him the power to enter the TV. The attendant begins laughing and admits that, as suspected, they gave the three powers.
When the protagonist first came to Inaba, the attendant shook his hand and gave his power a jump start of sorts. The attendant also did this for Namatame and Adachi, thinking these three outsiders would be able to shake things up in Inaba. The past year's events exceeded the attendant's expectations, and they question why the protagonist sought them out. The protagonist replies that he is pursuing the truth, and the attendant calls this foolish.
Suddenly, it gets foggy in the shopping district, and the attendant reveals her true identity as Izanami. The last being they fought, Ameno-sagiri, was only a temporary form she created. But the protagonist's power is too great for her to ignore as he now stands and challenges Izanami. She agrees to fight him for real this time and says she will wait for him in a certain place.
After discussing what they learned so far, the Investigation Team enters the TV World once more and go to Yomotsu Hirasaka where Izanami awaits them. As they make their way through, they hear Izanami talk to them. She reminds the protagonist that he saw this place during his dreams on his first night in Inaba, and she attributes it to her giving him a jump start with the handshake.
On another floor, Izanami speaks of the Namatame, Adachi, and the protagonist. She picked three people who embodied the qualities of despair, emptiness, and hope. One was ignorant of the truth and didn't awaken his power; another knew the truth but turned his back on it resulting in magatsu corrupting his power; and the third continues to search for the truth. She chose the three of them and gave them powers to understand what humanity wanted. Through the past year's events, Izanami learned that humanity does not value the truth, and she wanted to grant their desires by leaking the fog into the real world.
Seeing herself as one who fights to fulfill the desires of humanity, Izanami fights the Investigation Team. She appears as a figure in a large white robe. At first, they are unable to really attack her. The protagonist uses the Orb of Sight, unveiling Izanami's true form as a corpse-like being. She eliminates each member of the protagonist's party one by one with the Thousand Curses before getting the protagonist himself. For reasons beyond Izanami's comprehension, the protagonist stands back up and is no longer affected by Izanami's powers. He summons Izanagi-no-Okami and uses the Myriad Truths to defeat her for good. Izanami does not understand how she was defeated when she embodied the desires of humanity. Regardless, she wishes the group well as she vanishes.
In Golden, Izanami's background is changed. Izanami (Izanami-no-Okami), Ameno-sagiri, Kunino-sagiri, and Marie (Kusumi-no-Okami) all used to be one being named Izanami-no-Mikoto who was in charge of protecting people and granting their wishes, even if it led to destruction.[1] But humanity's desires went out of control over time, and the part of her that grants desires became so powerful that it split off into its own being named Izanami-no-Okami, while the part of her that protects people was left as a weaker being named Kusumi-no-Okami. Furthermore, Kusumi lost her memories, resulting in the amnesiac Marie who was used to spy on humans and determine what their desires are.
In February, Marie recalls that after the protagonist defeated Ame, she heard a voice similar to her own that said something about humans not wanting the truth and how they wished to live in the fog. This voice was presumably Izanami's. When the protagonist confronts Izanami on March 20th, if he has done Marie's Social Link, then will Izanami now remark on how much trouble the protagonist is for defeating both of the Sagiri, which she put into Adachi and Namatame, and saving Marie. Izanami mocks Marie for having kept the Old Bamboo Comb this whole time as it was a curse, and a sign of their separation. After the Investigation Team defeats Izanami, Ame, and Kuni, the three start to merge back into Marie, and she becomes whole again over time.
↑"Namatame: Then one day, the rumor I heard some time ago came back to me. Since I had nothing better to do, I sat down blankly in front of the TV and watched my own reflection..." '.
↑"Adachi: There's still this feeling I can't shake... It's about how it all started... about that Midnight Channel. Now I remember... Someone told me about it when I first came to town... before I heard the rumors at the station. And I was intrigued when I noticed that something similar was written on Namatame's reports as well. But... I can't remember who it was that told me. Since Namatame and I both gained our power after coming to Inaba... I have a feeling that has something to do with it." Persona 4.
↑"Naoto: The rumors about the Midnight Channel... It may be that this "Izanami" was the one who originally spread them... Neither Ameno-sagiri nor the Shadows have taken a single step outside the other world. Simply put, the only one who could have spread the rumor was someone who had come from there... Yosuke: The more it got passed around, the more extra junk got added to it… Like one big game of Telephone. That's where all the "you have to watch it alone" and "the one who appears is your soulmate" stuff came from." Persona 4.
↑"Attendant: I did the same for a few other outsiders like you. A handful of strangers were more than sufficient to stimulate a small place like this. But it seems the stimulus was stronger than I imagined-enough to envelop this town with fog, and later lift it..." Persona 4.
↑"Hashino: Izanami sees that humanity has stopped thinking critically for themselves and has surrendered to whatever they hear, and she thinks, "These unthinking people might as well be dead, so I will grant their wish. If I'm wrong, prove it to me." Then, when she happens to encounter certain humans that appear interesting to her, she bestows on them the power to change their reality, and that is how it all begins. But the protagonists are far stronger than she had thought, and though she had planned to merely be a spectator, they strike back in a way she hadn't expected. (laughs)" Persona 4 – 2008 Developer Interview. Retrieved December 30, 2024. Shmuplations.