Talk:Frozer/@comment-33516169-20181016010555/@comment-4136655-20181016012537

I don't think Frightningale takes place after Reverser (I don't think that's the case for Syren as well). Marinette literally goes "Hey Marc" to Marc at the beginning of the episode, indicating that she already knows who Marc is by the time of Reverser.

Plus, I think a lot of people forget, or may not realize, the filming of the music video would've taken quite some time, you definitely can't film and edit something like that within the span of the day. I'm sure the people in the video would've needed time to learn their choreography, as well. It is quite possible that Marinette already knows Marc before then or simply met him while filming Clara's video.

It could also be similar to how Steven Universe to how characters will have cameos in episodes before having an official debut episode, so to speak. (This could be the case for Ondine, as she and Kim seem to know one another before the events of Syren.)