Kazuha and Niwa

Kazuha was a wandering samurai from Inazuma. He was a kind boy, just like the sun. Although he was, he still is. Kazuha Kaedehara was the last of his clan, and he wanted revenge on the one who destroyed it. But now he lived peacefully with Bei Dou on a ship, traveling the seas.
The Wanderer was Kazuha's best friend. They didn't always see each other because the Wanderer was in Sumeru and Kazuha was traveling, but they were still the most important people to each other. The Wanderer used to be one of the Harbingers of Fatui, but he erased himself from Irmisul, and now no one remembers it except the Wanderer and Nahida. And they will surely take his secret with them to the grave. *

• The Kaedehara clan was very important to Inazuma and all of Teyvat, even though it was destroyed, so Kazuha was the only one. And the scientists of Sumeru decided to do the impossible - to revive one of the heirs of the clan who lived 300 years ago. A huge number of experiments, efforts. Kazuha also helped in any way he could. And then the day came when they made a breakthrough in science. They were able to resurrect life. They resurrected Niwa Kaedehara. For the first few minutes, Niva didn't understand what was happening, but when everything was explained to him, he reacted surprisingly calmly. After running a couple of tests, Kazuha led Niva around the city to show him what Sumeru looked like. The Wanderer, however, knew nothing about the project . Kazuha led Niva around the city, while the other looked around, mesmerized. The Wanderer, meanwhile, stood near the forge, placing an order. And when he turned his head... he broke off mid-sentence, his eyes widening in horror. Niva was walking down the street. The very same one. This wasn't a hallucination, but real. And when Niva and Kazuha passed by, Niva looked at the Wanderer and recognized in this cold man the same Kunikizushi who lived with them and froze in the middle of the street.