にん さん きゃく
nininsankyaku

Noun

1. three-legged race

Yojijukugo
Noun

2. cooperation with singleness of purpose (e.g. between companies); operating in tandem

Yojijukugo
いやでもおうでも、これからは きみ二人 ふたり三脚 さんきゃく仕事 しごとをするしかないのかね。
iyademo ōdemo korekarawa kimito nininsankyakude shigotō surushika nai nokane.
Like it or not, we're in this together. All we can do is work as closely as if we were joined at the hip.