Born from the blood on the sword of Izanagi when he slew the newborn fire god, Kagutsuchi. When Amatsu decided to increase their influence on the earth, they asked that Take-Mikazuchi, along with his brother, Futsunushi, descend from the High Plain of Heaven in order to pacify the deities of Izumo. The last of these, O-Kuni-Nushi, was compelled to surrender, but his son, Take-Minakata, would hear nothing of it. Twirling a boulder on his fingertips to frighten his foe, he challenged Take-Mikazuchi to a test of strength. They had the first sumo match, in which Take-Mikazuchi won by crushing the arms of Take-Minakata "like a young reed," casting them aside. Take-Minakata fled to Lake Suwa, where he married the Suwa goddess Yasakatome and became the guardian god.
"One of the sons of Okuninushi. When Amatsukamis decided to increase their influence on the earth, they sent Takemikazuchi to conquer Takeminakata. They had the first sumo match which Takemikazuchi won. Takeminakata then had his arms been cut and fled to Lake Suwa, where he married the Suwa goddess Yasakatome and became the guardian god."
—Shin Megami Tensei IMAGINE Compendium
Take-Mikazuchi appears as the boss of the Shibuya Metro instance players can access during the Chain of Curse series of acts. His strength at the end varies incredibly and can only be determined beforehand by the amount of HP the miasma consumes over time.
Take-Mikazuchi appears in the New Game Plus Challenge Quest, A Century of Defense. Summoned a hundred years ago during a great war to save Japan, he has resided in Midtown ever since Japan lost the war and was defeated by their enemy and their superior spirits, which gave him a severe injury. The client Tetsu made a promise to Take-Mikazuchi to find someone worthy to fight him. He mentions that the land lacks a summoner after introducing himself and asks Flynn if he is ready to fight.
During the battle he promises not to go easy on Flynn just because he's a human. The creed of warrior gods saying to always go all out against any opponent. Impressed by Flynn's skills when defeated and that it's a shame that he's merely a human, he decides to leave and admits it was hard looking for someone stronger than himself. Before leaving he mentions that there were other demons summoned years ago alongside him and wonders if they are still trying to protect the country.
Take-Mikazuchi is Kanji Tatsumi's initial Persona. It differs from the regular incarnations, and resembles a large black robot with skeletal designs. It holds a lightning bolt which it uses to cast Zio magic by shattering, or as a typical sword.
Known as Warbolt, he has the Power Deadeye, which decreases the chance of missing. Warbolts generally appear as Trainers throughout the game, strengthening the demon allies of the DemiKids over time after being paid.
Take-Mikazuchi is the main demon used by Gin. While he is rarely seen due to Gin's lack of participation in battles, Gin speaks of him in his emails and uses him in his battle with Azuma on the 6th Day. Completing Gin's battle during that day will unlock Take-Mikazuchi for fusion.
In the new eighth day of Yuzu's route, through a specific series of events, the party will learn that in order to repair the barrier protecting Tokyo from the demons, they must replace Jikokuten of the four Devas, who was defeated by Jezebel with Amane. The party may then find Gin and explain the situation, asking for Take-Mikazuchi to replace Jikokuten; Take-Mikazuchi accepts and the party must then undergo a mission protecting Gin while he commences a ritual with Jikokuten's artifact sword.
"The Japanese god of war or thunder. He is a god who played an active role in the abdication of Japan. He was born from the blood that spattered on the sword that Izanagi used to behead the fire god Hi-no-kagutsuchi. He was sent to Okuninushi from Takamagahara at the same time of abdication, but since Okuninushi's son Take-Minakata didn't obey Take-Mikazuchi, they had a duel of strength, from which he emerged victorious."