Firstly, the story. The story follows a simple plotline - monster children attempt to live life on a nearby island and learn about human culture without being found out. It's not a highschool anime, and I've seen some people salty about that but really? We don't need more highschool stories, and I'm glad they let the characters explore the island as a whole, because it brings a sense meandering tranquility fit for a slice of life. The challenges faced by the characters often involves forming new relationships and questioning the decision to distance themselves from their origins. It's not a spectacular plot, mainly because the pacing is a bit wonky in some places, and it ends on a very uncertain tone. Saying anymore would be spoilers, but it does leave you with some questions.
Art and Sounds are both mediocre at best. The opening is probably above average for me, but in anime sound design is not notable, and the animation quality is well below industry standards at times, likely because its an original chinese animation with an inexperienced crew and low budget.
The characters themselves have serious potential. I didn't dislike any of the characters, but some of them, Snow in particular, didn't have very strong or deep personalities. There were nice touches of character development, particularly for Aisley and Ashie and their sister Suishi. The main character, Tannis (or Deniss, depending on your subtitles) was handled...somewhat poorly. On one hand, he's what 9? And therefore, definitely for the most part, acted like he should. He makes some rash decisions, and can be tunnel visioned at times, and DEFINITELY should NOT be responsible for a group of people up to nearly double his age, and the show demonstrates why. But on the other hand, he doesn't have much beyond those traits. He's a sympathetic character, but maybe not a good MC. He demonstrates above average reasoning for someone his age (especially when contrasted against someone his actual age), but he's never given a chance of out flashbacks to demonstrate his full potential.
Overall, I liked this anime. It took me forever to dig up all the japanese audio episodes, but I did anyway because I was enjoying it so much. Overall, Creature Family Days is a average slice of life that has/had potential because of its characters and fantastic premise, but mediocre execution, and a poorly paced plot. Watch it if you need some time to kill and want a no-action non-plot heavy show. Otherwise (and it kind of hurts to say it) probably just skip it.
