expression, godan verb (-ru)
act in self-preservation; save one's own skin
Describes prioritizing one's own safety, position, or interests, often at the expense of others or duty. Carries a negative nuance of selfishness or cowardice.
彼は責任を逃れて保身に走った。
He dodged responsibility and acted to save his own skin.
政治家が保身に走る
It's common for politicians to act in self-preservation.