Rex Crozzo, the Anemo Archon, and the current Herrscher of Winter watched as his best friend and beloved Kiana Kaslana finally returned from her watch. The young Archon watched the happy sight with a sad yet happy smile. After all this time, they never needed him. 

'This looks familiar. Is this a dream?' Rex Crozzo thought as he reached deep inside. He was meditating somewhere in Shenzhou after finding some ancient scrolls.

His position as the Herrscher of White Frost was taken after he had pacified the souls and prevented the awakening of his friends, Ana and Owl. The two now lived with each other after he helped them fake their deaths, even becoming the best man at their wedding and Godfather to their child. 

Reinhardt and big sis Elysia were married now and had his beloved Niece, Reese. Reve, Rita, and Bianka got hitched and were coming back from a mission. He had seen Mei develop some... feelings(?) for Adam and knowing Kiana... 

No! He can't think like this! 

Quickly 'Freezing' his intrusive thoughts, the young man dressed in a black suit with a green shirt turned around. He had been a master of stealth, easily blending into levels enough to fool even the senses of Herrschers even if he stood beside him. 

He remembered how Bronya got her company while he...

His music career hit a dead end. Being a savior of the world could not save his reputation from the brutal style of Combat that he used during the defense against the Sky People. Well, their loss.

'Shit... is this an illusion?' Rex thought as he stilled his mind,  body, and soul.

The young Archon sighed as he found himself tapping into the concept of Freedom of the Anemo Gnosis and before he knew it, he found himself in the clearing in one of House Crozzo's estates. Gently, the Anemo Archon harmonized his presence with the area, effectively blending in with the environment. 

The Death of Himeko

The destruction of a part of St. Freya

The massacre of World Serpent

The destruction of the Hyperion

The eradication of his entire company called the Lamenters

The Sacrifice and Seal of Kiana

All of them happened because of him. Maybe... he shouldn't have been a warrior of House Crozzo. After all, he fucked up a lot. Not only that, he was still the weakest of the Herrscher squad and had to be protected. Even in the fight with Otto, he was taken out of it too quickly. 

All of his sacrifices were in vain. He even prepared a contract with Xipe and the Imaginary tree to save Kiana from the seal and it was for nothing since she was back. 

His fulfillment of the original mission of the Herrschers and the Honkai

All his training. 

That's right, all of this would have gotten better if you didn't help,

Aha?!

I am an observer of sorts. I am Aha

I prefer Sheogorath

How Rude!

What? 

Even now, they don't need you. You only made it worse.

'I know

Huh?

Rex said nothing as he felt at peace  He would never be able to let it go.

You can undo all of your mistakes! Ah~ What an amazing choice. To have all my mistakes wiped clean. 

The image of a dying Himeko appeared in his mind as he remembered how he watched helplessly as the Herrscher of the Void's lance impaled her boy as she protected him. 

The memory of his failure at the Battle of St. Freya and how it took him too long to fight back as he evacuated the school.

The time he accidentally caused a massacre as he did not execute the sleeper agents they sent. The way those people were killed by World Serpent.

The ship Himeko owned was destroyed during a defensive battle he waged that he had to sacrifice to protect a city

The way his men sacrificed himself after they walked into a trap and how only he was left alive, having to endure days of being covered in blood and dirt from his enemies he killed and the companions that protected him

The miscalculation he made during the time he formulated the seal to allow Kiana to seal the moon without sealing herself as well. The slight flaw made it useless.

His biggest mistake. 

Letting the Herrscher core awaken inside of him, making him destroy an entire Planet after he let his guard down once he was Isekai-ed. 

So many mistakes~ 

I am Aware.

So many debts to pay~

and.

Do you accept my offer? 

Rex said nothing.

'Leave me be, Aeon,' Rex thought, banishing the residue of the Aeon's gaze in this dream.

"Rex?" Kiana Kaslana looked at her best friend. No smile was present on her face as she looked at him.

"Kiana..." Rex whispered as he looked at her. He missed her deeply but he knew...

A soft hand made contact with his cheek and before he knew it, he was forced to look to the side. 

"You dumbass!" Kiana shouted as his mindscape cracked, revealing the space he created when he became a Herrscher. Using her arms, the young woman gave him another slap on the cheek. "How could you?!" 

"What?" 

Feeling his cheeks hurt, the young man looked at her. 

"Did you think I would be happy if you were gone?!" Kiana asked, grabbing him by the collar of his clothes and pulling her close to show how her eyes vibrated with rage. "The answer is no!" Kiana shouted as she wrapped her arms around him. 

"How did you..."

Kiana just offered him a grin and he felt it. Dark eyes widened as he felt a connection with her. "I used my authority," 

"Kiana..." 

"No buts! It was annoying dealing with your failsafe," Kiana whispered with a pout. "Do you hate me that much?" 

"WHAT? Of course not!" Rex shouted, only to sigh as he saw her grin. 

=--=-=-=-=-==-

Rex opened his eyes as he woke up. What the hell was that dream? 

Why is it cold? 

"Ah, you're finally awake," 

"What the? Where am I?" Rex asked, looking around as he looked at the girl. He no longer had his Gnosis yet. A soft gust of wind messed with his hair. This land was familiar. 

"Oh? You're in Monstadt, Sorry for waking you up, but you just fell from the Sky," the girl said. "I'm Amber, Outrider of the Knights of Favonius," 

"Rex... Just Rex, traveling musician/bard," Rex said, introducing himself to the girl. Wait... he was back in his original age when he first contracted Xipe?! He was 20 again?! 

"Easy," Amber said, gently helping him sit up. Before the two could react, a soft yet powerful gust of wind floated them off the ground. The sudden event made Amber yelp while Rex, already used to such actions, twisted his body in the air and gently steadied her before they landed her on the ground. 

"Easy, Anemo currents can get a bit disorienting," Rex whispered as he held her shoulder and used the other one to hold her wrist. Blinking, "Since when could I use my Anemo powers again?" He asked himself.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

Sneak peek

-0-0-0-0-0-0-0-0-0-0-0-0-0-0

Amber's eyes widened as she returned from her scouting to escort Rex back to the city of Monstadt. 

The Dragon of the East was fast asleep, curled in a semi-circle. Her newest friend, the mysterious bard, used a Lute with a long neck while humming a song as a wind sprite 'sat' on his head. Numerous Anemo crystal flies and Anemo slimes danced and sang as he played. 

A huge clear tear drop floated as the young man played and hummed a soundless song of winds. 

-=-=-=-=-=-=-=-=-==-=-==-=

Let's go!!!!!

This is my headcanon! 

They got married!!!!!