This was a blade passed down to the present day, ever-present as a shadow.
A blade that had served two generations of masters and witnessed time and eternity.
It had been born from Raiden Makoto's divine might, yet it had never been sharpened. A weapon reflected its master; Makoto was not skilled in battle, so neither did it fight. The blade was like an emblem of authority, symbolizing only Makoto's peace.
On the day Makoto passed away, it was handed to Ei. A famed blade drank blood, its first drop falling from its tip before being scattered by raging winds and roaring thunder.
Makoto had named it "Musou Isshin," wishing for it to bear witness to an Inazuma as beautiful as a dream, and to a noble heart that would endure alongside this world.
Ei did not correct its name.
For she too had seen that same beautiful sight, and from it, a purer, more powerful "heart" had been born.
The aesthetic of lightning was to seize the fleeting precious heart amid the illusory dreams of this floating world.
"Inazuma's radiance is eternity as well!"
Lightning descended. Within the Plane of Euthymia, Ei possessed even greater power, and the Electro elements all favored her. Though Raiden Mei was also a wielder of lightning, this was not her domain.
Even so, Raiden Mei still did not fall behind...
"Thunderclap: Heavenly Feather Slash!"
Shielded by lightning, Raiden Mei charged forward against the thunder.
Who knew how long had passed before Raiden Mei was forcibly pushed out of the Plane of Euthymia by Ei. She realized that she simply could not defeat the girl.
Raiden Mei emerged from the Plane of Euthymia and looked at the Raiden Shogun before her. Just as she was about to say something, the Raiden Shogun