There's also a shot of the three maids (who got Yuri all dolled up) looking pleased. One of them even gives the peace sign!
When Prince Zannanza is first introduced, he asks to see Ishtar (which he assumes is a Hittite style of a beautiful woman.) When he is introduced to Yuri he assumes that Kail has shacked up with a boy.
The look on Ilbani, Zannanza, and Kikkuri find out in chapter 18 that Kail hasn't actually had sex with Yuri yet, they go through a 'what the?' moment before immediately assuming he's sick and race off to find a doctor as Kail protests that he is perfectly well.
Yuri asks Kash if having a son is so important after one of Kail's old lovers, Lady Guzel, claims her child is his. He goes on about how men want to leave behind as many children as possible and Kail must be delighted. Kash's girlfriend Ursula, who has made it her goal to make Yuri Kail's wife, smashes a vase over his head and claims there was a bug.
Even funnier, following the incident, one of the group members quietly comments on how they thought it was too cold for bugs to be out.
Any time Hadi, the twins, or Yuri do an anachronistic peace sign while grinning. Juda even does it with Yuri, when they keep poisoned wine from reaching Juda's brother.
During Yuri's first campaign, she and her maids go to collect strawberries and are under attack from enemy soldiers. Ilbani hears about the soldiers and sends the generals to secure Yuri's position. They find the girls have utterly trounced the soldiers and are annoyed that all their handpicked strawberries were ruined. Mittanawa scratches his head over what to do next.
After Kail reveals the whole "fake Ishtar" deception, he demands of the governor where the real Ishtar is. The governor protests that he does not know. Kail, knowing Yuri's previous track record of what she does when she's on her own, takes a different tack:
Kail: Let me rephrase the question, then: where in Katapa are you having trouble right now?
Governor: Trouble? Why, there is no troub-
Messenger: Lord Governor! There is an uprising!
Governor: Keep silent, you rogue! This is his highness Prince Kail!
Kail: *thinking* An uprising? Yep, that's Yuri.
In the epilogue, Ilbani finds the young prince spying on Kail and Yuri making out in the courtyard. When he asks what the prince is doing, the kid replies that he's "studying how to be a man". Ilbani just smirks and leaves him to it. The prince then sneaks closer so he can hear what steamy, "adult" things Kail and Yuri are saying to each other... only to find that they are discussing tariffs and tax rates in between kisses. He quickly grows bored of this talk and leaves.