|Subtitle||Sword of the Storm God (嵐神の剣, Ranjin no Tsurugi?)|
|Core Color||Midnight Blue|
|Current Owner||Mahiru Hīragi|
|School of Ownership||Queenvail Girls' Academy|
Takemikazuchi: Sword of the Storm God (建御雷, Takemikazuchi?) is one of the seven Orga Luxes belonging to Queenvail Girls' Academy. It is currently being used by Mahiru Hīragi, with the outstanding compatibility rate of 95%. It was formerly used by TBA whose compatibility rate stood at a TBA.
In its deactivated form, Takemikazuchi takes the shape of a ring with the dark blue Urm Manadyte core serving as the precious jewel. When activated, the ring expands into a katana with its azure cutting edge measuring seventy centimeters. After forming a deeper bond with Mahiru, Takemikazuchi's blue blade changed to a deep crimson energy blade which Mahiru can solidify into an actual blade by pouring Prana into it. Takemikazuchi also has a sheath in which Mahiru uses in her battōjutsu.