Here comes a short review for a short ONA! Keifuku-san is about a girl and her manta ray creature in a strange seemingly abandoned (by humans) world. I think they are getting parts to piece together a world or something? There's not much to say about the story, as it is pretty vague. The animation is primarily CG and it's decent. Nothing impressive to behold, but you won't find yourself cringing at anything either. The color palette is pleasing to the eyes at least. My favorite part of it was the sound direction. It had simple, yet fitting, BGM, but the best part were the sound effect/voices.The manta ray flies around murmuring "kosho~ kosho~" in a pleasant whisper throughout. I know that hardly sounds praise worthy, but something about it is just so fundamentally pleasing to my ears.

This was able to catch my attention enough that if it were made into a movie or longer series I would check it out.

This is worth a watch if you have five minutes to spare and want to see something carefree and pleasant.