The Liar and His Lover
그녀는 거짓말을 너무 사랑해 (original)
A talented singer falls in love at first sight with a music prodigy who has an affinity for lies -- and a knack for being a hit-making producer.
Starring Lee Hyun-woo, Joy, Choi Min-soo, Lee Jung-jin, Kim In-kwon, Im Ye-jin, Lee Seo-won, Sung Joo, Hong Seo-young, Song Kang
Watch "The Liar and His Lover" on Rakuten Viki released in 2017. It's a comedy and romance show, and has a rating of 6.8 out of 10 from Imdb which is usually fine for this kind of show, and is currently available to watch for free.