This anime suffered the same fate as Madoka Magica Side Story when it came to character introductions. Well, maybe not quite, it was at least a bit better. But, as the series met its last episodes, there has been numerous cast that just suddenly popped up, without enough information about them. It's just simply hard to connect or care about a certain character if there's no proper build-up.
An example was the Palace Knights, I didn't know they were battling with the shadow creatures as well. I also didn't know Christina was their Vice Captain, and that she was actually one of the 'good guys.' Throughout the series, I thought she's an underling of the antagonist. If I knew she's scouting for the betterment of the Palace, then I would have understood more about her role.
Moving along, having a huge roster of waifus in this show, there's one that really stood out the most for me. You're probably either thinking she's someone who has an impressive fighting ability or just overly attractive, but no, she's not. It's actually the llama.
Yes, I'm referring to Rima.
Her introduction to the show was just really unforgettable, and she made me laugh out loud. It's her charisma that won over me.