"Alright, so both of you are strong. I'll tell you who I think is better after you answer my question. The last time you fought, who defeated who?"
"I won last time. So I should be the Elder Brother."
"No. You are not the better of the two of you. Elder sister Lan is overall slightly stronger than you"
"Yay! Haha you need to call me Elder sister."
"No way that can't be right."
"Listen, to be fair I don't think it really matters between the two of you. You're twins after all. I say that Elder sister Lan is better because she gave me the most trouble dealing with. Whereas I could dodge most of Elder brother huang's attacks I could only evade infrequently from hers. So I'd say she did more damage to me over the course of the fight."
"WAHN! I don't wanna be the younger brother."
"It's okay, let elder sister give you hugs."
The two of them oddly were oddly accepting of this response. Yang Rai continued.
"Now that I have fought you this is the determination that I came to. I know it may not be what you wanted. But you know my elder brother Yang Rai right?"
"Yes. We gave him the power to purify the Ink Force."
"I'm far stronger than he is. And I still call him my elder brother. That is unless he's being an idiot and causing trouble."
"So that's why you said it doesn't matter who is stronger?"
"Exactly. If you both want to be the elder sibling just change who is which every decade or so."
They all landed back on the spirit province from before. A cultivator tried asking for Yang Rai.
"Sir, great emperor. Please take us away from here."
"I can do that if you like but you may actually prefer this place. You're under the protection of two damn near invincible individuals. If I were to take you away now what would I gain?"
"We, we don't have anything."
"Good then keep the kids company. Now Elder brother and Sister. I give you the reward for sparring with me. The results were better than I expected so I will grant you another kindness."
Yang Rai pulled out 2 freshly synthesized rank 6 boulder producers. Along with many Divine Spirits who were excited to see these two amazing beings.
"AH Junior brother you had so many spirits?"
"This boulder even produces rank 6 materials."
"World Master, Yang Rai, thank you for always giving us these great opportunities."
"Ahahaha, I have many more spirits but they want to stay with me. I take good care of all of my world's inhabitants. As for the resource boulders I put a restriction on them so these cultivators can't steal them. They are meant to help with the game you play. And I hope all of you Divine Spirits learn and grow being around your Elder siblings. I have to leave. Void Land needs my attention."