Adaptation Displacement: Very few people realize that this show is based on an established property, especially since the toyline it was supposed to promote didn't do well.
Angst? What Angst?: Despite momentarily calling the destruction of his moon a "major bummer", Maroshi is downright jovial about it, even bidding the debris of his former home a fond farewell as it drifts off into space. However, this is subverted in "Feelin' It", where it's shown that Maroshi feels completely broken up that his first instinct was to flee with his Flochis rather than do anything about it.
Kiazuki is not a very nice person, and her treatment of Hanazuki causes the poor girl to feel some truly negative emotions. That said, it's not hard to feel sorry for Kiazuki after seeing her destroyed home moon and how she calls herself a failure. Seeing her cry her heart and soul out in the first season finale, despite having nearly tried to deliberately destroy Hanazuki's moon, just adds fuel to the fire.
Chicken Plant. She is completely dismissive of her children even before they're born and yet, while this hardly excuses her actions, she does so because she can't stand the heartache of saying goodbye to countless children that grow up in a near literal blink of an eye.