Dude, that’s not Zons wife, that’s his little sister.
Zon's middle school aged little sister hence, "Laios isn't into cute and funny" since Laios was uncomfortable with how Zon was trying to push Leed on him when he became king. Instead in one of the .5 4koma chapters Laios' compliments towards his wives had Zon enraged because he thought Laios was after them.