Pure Love (Hangul: 순정; RR: Sunjeong), released internationally as Unforgettable, is a 2016 South Korean romance drama film starring Do Kyung-soo and Kim So-hyun.

In 2014, a radio DJ gets a letter from his first love that brings up almost-forgotten memories of the past.

23 years ago in 1991, five friends spend the summer together. One of them, shy and innocent Beom-sil falls in love with Soo-ok.

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