The Sound of Heart

The Sound of Your Heart
Jo Seok in his own artstyle
마음의 소리
Genre	Comedy
Author	Jo Seok
Publisher	Naver Webtoon
Original run	2006 – present

The Sound of Your Heart (Hangul: 마음의 소리; also known as The Sound of Your Mind, Sound of Heart) is a South Korean webtoon series written and illustrated by Jo Seok. The webtoon was first released on the Naver internet portal in 2006. In 2007, the first print volume was released and The Sound of Your Heart was adapted into a TV series of the same name in 2015.

On December 17, 2015, the 1,000th episode of The Sound of Heart was posted on Naver. Since Jo started posting his webcomic on Naver, views averaged 5 million per update, a total of over 5 billion views. The Sound of Heart is the longest running South Korean webcomic.

When Jo got married in 2014, he did not have a wedding ceremony or honeymoon trip because he did not want a lapse in his update schedule. In 2015, Jo earned about ₩78,000,000 per month (approximately ₩936,000,000 per year).

In The Sound of Heart, most characters are based on people in the author's life.

KBS had been planning a TV series involving The Sound of Heart since 2015. Lee Kwang-soo was cast to portray Jo Seok, and Jung So-min is cast to portray Lee Ae-bong. The series has also been picked up by Netflix and is planned to be broadcast on both channels simultaneously on February 24, 2017.

Korean mobile game company Neowiz Games produced a mobile video game adaption of The Sound of Heart, launched on Google Play in April 2016.

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