Iyo falls in love with an Ukaku Ghoul girl that she sees regularly in a coffee shop. Matsuri finds out and confronts her (and is also a no. 1 shipper)

Iyo enters the Washuu mansion whistling. 

“How was your date?” Matsuri leans against the doorframe to their bedroom.

“What?” Iyo drops her purse in shock.

“Iyo, it’s obvious you’re flirting with that girl. I saw it the moment I passed the cafe.”

“Shut up.” Iyo blushes. She’s caught; she knows it. 

“Hey, so long as Tsuneyoshi doesn’t find out, I ship it.” He grins. “What’s her name?” 

“Nothing!” Iyo stomps her foot.

“She doesn’t have one?”

“Ack, you’re so annoying!” Iyo claps her hands over her cheeks to block her blush. “It’s Mikan.”

“Mikan, eh?” Matsuri strokes his chin. “I like it. She’s cute, too. If I were straight, I’d date her.”

“If you were straight, we’d have a functional marriage,” Iyo counters.

“Touche,” he says. “Well, tell me more. I’m so excited to hear about your crush.”