Magic Cellphone
마법의 핸드폰 (original)
When an ordinary guy crosses paths 15 years later with his childhood sweetheart, now an actress, a magic cellphone allows him to be her protector.
Starring Kim Jin-woo, Nam Jung-hee, Park Min-ji, Kwak In-joon
Watch "Magic Cellphone" on Netflix released in 2016. It's a drama and comedy show, and has a rating of 4.2 out of 10 from Imdb which is fairly low for this kind of show.