I randomly stumbled upon this series and swiftly binged it. This is a unique title, Goldfish are envisioned as monsters in a world-ending apocalypse. That's the whole story really, and it works quite well. While I am aware this series came out a long time ago, it is clever. The author did not make a half-baked series featuring fish, there are clear explanations and incorporated features only Goldfish have. There was Anime potential here, I could see it happening. Since that isn't the case, at least ended before becoming something unsuitable. Sometimes not all good series need to feature tricks and tropes seen across Manga or Anime. Agood title can be great even fi it's not famous, and this is a great example of that.