Aether still stuck with his Kylo Ren Persona is having some Tantrums Problems every day or months. Like he saw Both
Shogunate Soldier and Resistance Soldier bickering and he wasn't happy.

Aether: What are you two doing?!
???: Sir! He started.
???: No he is.
???: No I'm not, You are!
???: No You!
Aether: ENOUGH!

They were shocked then Kokomi, Sara, Gorou, Lumine & Paimon heard the commotion as well.

Aether: Do you know why I'm here?
???: It's because of our mistake?
Aether: No! Because I came to talk with Sara and other Generals in the army and you always bickering.
???: Cmon, What's the worst that could happen.
Aether: And I got a question for you, a guy is standing in front of me.

Then the Guard gasped.

???: Sir, It's been a pleasure to work with you.
Aether: No, you scoundrel! It was you!
Gorou: Your brother got snapped.
Lumine: Yep.
???: Ohhhhh, There's the news coming, you want a raise... Blah, blah, blah...

He grumbled and eventually angrily shouts as he ignited his Lightsaber and slashed him. They were shocked by his temper and action, He breathes heavily.

Aether: Anything else to say?

The Resistance Guard walked away then he saw the guards.

Aether: Hey! What do you imbeciles looking at!?
???: Nothing, Nothing!

They walked away as he deactivate his lightsaber.

Aether: *sighs* Idiots.

He walked as he saw them.

Aether: Let's cut to the chase.
Sara: Geez.

Next is that He lost the game to Kaeya.

Aether: Son of a-

He ignited his lightsaber and destroys the objects, Much shocking to Diluc, Jean, Kaeya, Amber, Eula & Barbara. Lastly, He went to buy the Tofu and Dango for both Miko and Ei, but the Salesman told him that they were both sold out. He ignites his Lightsaber and destroys the food stand then as he finished then deactivated his lightsaber.

Aether: Anything Else?

Lumine and her friends had enough of his tantrums, They set up their calming spot is the Sakura Tree. Kazuha met up first, then Aether, wielding his Crossguard Lightsaber.

Aether: Are you here to fight me?
Kazuha: No, I'm here to-
Aether: Save it, Fight Me instead.

He ignited his lightsaber as Kazuha prepared his katana. The duel in the Sakura Tree began, Kazuha tried to fight back but He overpowers him. As he was about to finish him off, he was stopped by Lumine.

Lumine: No, Aether, Calm down.

He deactivated his lightsaber then someone grabbed his lightsaber away and It was Miko along with her friends.

Aether: What is this?
Miko: This is Relaxing Place, Not Training Grounds. Have a seat and a tea.

Then they sat on the grass while having some tea.

Lumine: Brother, I think it's time for you to let go of your Kylo Ren Persona.
Aether: Oh yeah, sorry.
Miko: Why don't you relax for the while.
Ei: It'll help you.
Aether: Okay, I'll try.

He relaxed and was hugged by the girls, Lumine joined in as well.

Sara: Let's stay here for the while.
Aether: Okay.

They eventually stay at the Sakura Tree until he is finally calmed down and abandoned Kylo Ren's Persona.