The movements of individuals within a flock of fish or birds can be roughly described by the balance of only the following three factors:

① Gather in the center of the whole flock (so they are not exposed to predators)

② Maintain a certain distance from each other (so that individuals do not collide with each other)

3) Align with the movement vector of the whole herd (do not become separated from the herd)

We recreated how these slight differences in power balance change the behavior of the entire school, and observed the movements of the fish in detail.

Based on these results, a large number of lighting reflectors were arranged like a school of fish.