"I did not have sexual relations with that woman"
Well played.
Also i like how their relationship developed, Kazuya realized that he is attracted to her but still kept faith.
I hate Mami but cant deny that you could say shes well written since she is supposed to be an hateable character. She is still actually right about what she is talking about tho, even if she had an ulterior motive to saying that.
I feel bad for Ruka but also symphatise with the mc that even if you wanted to sometimes you just cant catch feelings. Just a shitty situation overall.
Fish-san finally got more screentime yay! Also kazuya seriously is complaining about a lonely christmas even when ruka would kill mizuhara for him to be with her if it was legal..