love someone so much you're blind to their faults; apple of one's eye
Idiomatic expression describing doting affection, often for a child or grandchild, where the person can do no wrong in one's eyes. Literally 'it wouldn't hurt even if you put them in your eye'.
My grandchild is so adorable I could just eat them up.
She raised her only daughter as the apple of her eye.
Standard kanji-kana mixed spelling for this idiomatic expression.
All-kana spelling; sometimes used in casual writing or for clarity.
A Japanese idiom literally meaning 'it wouldn't hurt even if you put them in your eye', expressing the idea that someone is so precious that even something normally painful would be bearable. The exact origin is uncertain, but it is a traditional expression of extreme parental or grandparental affection.