"The thunder storm on Seirai Island, huh… Why are you suddenly asking about that?"
Shiki said irritably, "How can I not ask? That thunder storm surrounding the entire island can be seen from across the sea. Aren't you really worried that thing will explode someday?"
"Oh, don't worry, it definitely won't explode. At most, the electro element concentration is just too high." Yae Miko waved her hand. The Raiden Ei hasn't said anything, so why should she be anxious?
"…Inazuma now needs a dual recovery of economy and population. Seirai Island is key among them, and not just Seirai Island, Tsurumi also needs to return to normal."
"Relying solely on Narukami and Yashiori Island, Inazuma's population won't increase much, and in case of a famine, the food production of just two islands would also be a problem."
Shiki frowned. Was Yae Miko truly clueless, or did she just not want to deal with it? Is it really okay for Inazuma to keep stagnating like this?
But facing the girl's words, Yae Miko suddenly sighed: "Alas, the situations on Tsurumi and Seirai Island are not as simple as you imagine."
"Hundreds of years ago, the seal on Seirai Island was broken, and the Thunderbird's electro archon's residue was released. The intense thunder storm caused an anomaly in Seirai Island's Ley Lines. Even if that monster is defeated, it will re-condense in not too long due to the Ley Line anomaly."
"In other words, unless Ei takes action to dispel the thunder storm surrounding Seirai Island, then this island cannot be inhabited."
"As for Tsurumi Island, the situation is even more complex. Because the events happened too long ago, even I am not very clear. There is dense fog, and no matter how one walks, they will return to the starting point, and things experienced there will also be quickly forgotten."
"So, wanting to restore these two islands to normal is easier said than done. Seirai Island still has a solution, but Tsurumi is a complete tough nut to crack; it's hard to approach from any angle."
Yae Miko's words made Shiki fall into thought. Looking at it this way, she indeed thought it was a bit too simple. Sure enough, things in games can only be used as a reference.
Moreover, in the game, even after the Traveler repaired the seal and defeated the Thunder Manifestation, the thunder storm in the sky still existed, it just didn't have the excessive electro element anymore.
Also, the Thunder Manifestation in the game was just as Yae Miko said; it would respawn every once in a while, though in the game it was a few minutes, while in Teyvat it was a few weeks.
Shiki thought carefully for a moment, then asked: "Then can the seal on Seirai Island be repaired first to remove that excessive electro element?"
"It can be, but under the influence of the thunder storm, the seal will quickly become ineffective, and eventually return to its original state," Yae Miko said.
"Hmm, if it can be done, then let's repair the seal first. I'll talk to Ei about the thunder storm."
To summon a thunder storm, Shiki could do it, but to ask her to remove a thunder storm that had raged for hundreds of years, she truly couldn't.
The fundamental reason for the formation of the thunder storm was the electro archon's residue left after the death of the Archon Thunderbird. If the sea area connecting Seirai Island were connected into a single image, one would get a pattern similar to a bat.
And over four hundred years ago, Asase Hibiki broke the seal that had lasted for a thousand years, which means about fourteen hundred years ago from now. From this, it can be known that the Thunderbird was also a formidable character who had survived from the Archon War period.
But why it was slain by Raiden Ei is currently unknown, though its strength was certainly not bad.
The thunder storm formed after the death of such a great Archon was not something she could command, or rather, not something she could command at her current level.
The lightning summoned by Shiki could generally only cover one area, similar to Nazuchi Beach or Inazuma City.
However, the Thunderbird's thunderstorm enveloped the entire island, and it could still be seen from Inazuma City, many kilometers away.
Currently, the only person capable of dispelling the thunderstorm is Raiden Ei, because she can create a thunderstorm that encompasses all of Inazuma, so dispelling the one on Seirai Island would be effortless for her.
As for why she hasn't done so, the reason is quite simple: she likely doesn't even know about it.
The seal was broken after Raiden Ei submerged herself in Isshin Pure Land. By then, the Archon War had already ended, and Yae Miko had become the Guuji of Grand Narukami Shrine, which is why she was so clear about the cause of Seirai Island's current state.
Judging from Yae Miko's ability to repair the seal, Shiki guessed that Yae Miko had probably sent people to repair the seal at that time, but as she said, it reverted to its original state not long after.
At that time, Raiden Ei had already entered self-isolation mode, refusing to come out no matter what, so Seirai Island remained in that state for hundreds of years.
"Since you put it that way, Grand Narukami Shrine will also do its part. After all, Grand Narukami Shrine is partly responsible for Seirai Island becoming like this."
"That was Five hundred years ago. Do you want to hear about it?" Yae Miko suddenly asked, looking serious.
"Yes, yes! Paimon loves stories the most!"
Paimon clapped her small hands eagerly, while Shiki and Ayaka were a bit unaccustomed to Yae Miko's sudden seriousness.
As for Xavier… this engineer from Fontaine could only tremble as he listened to their conversation. From what he gathered, the person named Ei must be Inazuma's God, the Raiden Shogun.
To refer to their God by such an intimate name, it was clear how extraordinary their identities were.
"Heh heh, this all starts with a Miko named Asase Hibiki."
"Asase Hibiki was originally a girl from the countryside who entered Grand Narukami Shrine in her youth to study and become a Miko. Frankly, I wasn't much different from her at that time; we were both equally naive."
"Later, Asase Hibiki befriended a taciturn young man named Konbumaru. Of course, he also had a name more widely known: Takamine Mutsurugi."
"Then, when the calamity erupted, Takamine Mutsurugi made a bet with Asase Hibiki: if he returned alive, he would take her as his wife. The stake was the bow in his hand, Thundering Pulse."
"As you might expect, Takamine Mutsurugi lost the bet; he didn't return."
"Heartbroken, Asase Hibiki left Grand Narukami Shrine and returned to her hometown, Seirai Island, where she built a cat shrine called Asase Shrine."
"About a few decades passed, and the original girl had grown old, but she met a great pirate named Ako Domeki."
"In Domeki, Asase Hibiki saw a shadow of Konbumaru, so during the Shogunate's encirclement operation, she destroyed the great barrier that had protected Seirai Island for a thousand years."
"Finally… boom!"
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