Knight in Shining Armor - Idioms


while working on some translations I ran across the phrase: 輝く鎧の騎士. A
character was refered to as this. Google tells me it translates to "knight in
shining armor". My question is thus: Is that the idiomatic equivalent of the
phrase in English, and if not what is?




In Japan, you often hear 「白馬{はくば}の王子様{おうじさま}」or「白馬{はくば}に乗{の}った王子様{おうじさま}」to
represent a gallant prince saving a damsel in distress.

Your example seems more of a literal translation of the English idiom but I'm
uncertain.

