Urie has a little sister (who is gorgeous and is very clever) who is just joining the CCG and becoming a quinx like her brother. She gets a different rc type, and is surprisingly fast at learning how to use it. He dislikes her because she remembers very little of their father but is also (he thinks) the reason their mother died during childbirth (bc we don’t know much about her). Feel free to do more with her! (I like the idea Kuki having a baby sister who looks like him)

Urie Sumire is exactly the type of girl Saiko likes. Full-figured, athletic, short, and smart. Someone to help Saiko bear the female burden among a bunch of testosterone-driven fools.

“I’m an ukaku, just like you!” Sumire beams at Shirazu, who wipes his nose to ensure he’s not bleeding.

“N-n-nice to meet you.”

“Mutsuki, you’re so handsome.” Sumire hugs Mucchan, and Urie Kuki’s eyes flash.

You might have taken Mom, but you’re not taking Mucchan from me, he vows.

He really doesn’t know much about Sumire. He’s ignored her for much of their lives. But now he won’t be able to ignore her anymore, and he’s unsure how he feels about this.

“We should practice using our ukakus,” Shirazu squeaks.

“Yes!” Sumire nods. They scamper off, and Saiko winks at Urie. 

She’s going to get a promotion before me, isn’t she? Urie scowls. “Mutsuki, help me practice with my koukaku.”

“But I don’t have a koukaku…”

“No matter! I have to get promoted first,” Urie begs.

Saiko and Mutsuki exchange glances.

“What?” Urie demands.

They burst out laughing.