~Author's Note~
If you weren't already clued in by day 17, I ship Youmu and Sanae. They have a lot in common; they're both cheery and a bit strange, they serve powerful and mysterious women who like messing around with them, they're Incident-Resolvers, and they both have some green in their outfits. Youmu doesn't have Sanae's boundless confidence, but Sanae's fine with that and happy to support her.
~A Woman of Good Taste~
Youmu was waiting in a quiet beer garden. She jumped up when she saw Sanae approach.
"You're here!" Youmu pounced on Sanae and squeezed her. "That nurikabe didn't give you any trouble, did she?"
"I don't know. I just bashed her head in," giggled Sanae. She pulled Youmu close for a moment and let their noses press together.
"You're silly," sighed Youmu. As she pulled back, she noticed Sanae's lips were green. "Um, Sanae? Why are your lips green?"
"What, this? It's lipstick!" declared Sanae. "Matcha flavoured."
Youmu's jaw dropped. "They put flavours in lipstick?!"
Sanae nodded. "It's very sweet."
"Oh, wow..." Youmu's own lips formed a shy but eager smile. "You wouldn't mind if I... tasted it?"
"Not a bit!"