Yu-Gi-Oh's Back Spirit System

In the vast Atlantic Ocean, an underwater base is quietly operating. This base is not large, but it is far away from almost all continents and is a piece of land that no one can discover. However, being far away from the land brings hidden benefits. Many studies that are not in line with human ethics, human social morality, or are likely to cause social sensations can be carried out here. In other words, for those Frankensteins in the movie who conduct anti-human experiments all day long, this is a perfect place. However, this also makes it basically impossible for this base to obtain many supplies needed by humans. It can be said that basically no human can work in this high-pressure environment.

But for the "people" in the base, those things are dispensable, so such an environment is not unacceptable.

At this time, in the base, an armor that was originally placed on the wall for decoration gradually moved. This strange scene seemed common to Dr. Crab Head, who was testing some data nearby. He asked the armor without turning his head: "What's the matter? Are you back so late this time?"

["Well... there are some unexpected situations.\