Birds

A frequently used symbol are birds, maybe doves, to represent the conformity of being part of a swarm.

If one argues, that a bird equals freedom, then the bird loses this freedom as soon as it joins the flock. Becoming invisible that way.

Birds where uses in the first episode on staircases.

In the second episode they where a primary symbol at Sumikos funeral, a projected veil of black birds over the masses, only broken by bright white circles around characters, who break that conformity by following their true love, or being a bear. Furthermore there is a huge tessellation of white birds and pink lilies on the stage. Showing, that conformity and Yuri might be in contrast to each other, are interwoven, or negate each other.