Hangul: 알 수도 있는 사람
English title: A person you could know
Aka: People You May Know, Someone Noticeable
This is a drama about finding out the password to an ex-lovers smartphone and recalling the memory of love.
Choi Soo Young as Lee Ahn
Lee Won Geun as Kim Jin Yeong B
Shim Hee Sub as Kim Jin Yeong A
Jeon Hye Jin as Kim Hyo Eun