一见如故 (yī jiàn rú gù) | Meaning: familiarity at first sight | Chinese Idiom with Pinyin & Origin

to fall in love at first sight (idiom)一见钟情yī jiàn zhōng qíng

love at first sight一见倾心yī jiàn qīng xīn

lit. to be together from the first beat (idiom) · to hit it off · to click together · to chime in easily一拍即合yī pāi jí hé

to share common interests or views; to get along well; congenial相投xiāng tóu

familiarity at first sight