FULL-https://static1.e621.net/data/c7/10/c710bbfc027ac479cc7f507fa711cad1.webm
FULL-https://static1.e621.net/data/85/80/858085c264ebec3e93c2383b3b1e0619.webm
FULL-https://static1.e621.net/data/39/6b/396b4c41c7bed09cedf9a136ce5caac3.webm
https://static1.e621.net/data/77/48/77487674b5321510d3ab693874dc7b9f.webm
https://e621.net/posts/2436244?q=zero-sum
https://e621.net/posts/2396474?q=zero-sum