Kang Jin-ah (September 17, 2021). "슬의생' 99즈가 떠나는 우정 여행...'슬기로운 산촌생활" [Friendship Journey of 'Life of Despair' 99z... 'Wise mountain village life']. Newsis (in Korean). Archived from the original on September 17, 2021. Retrieved September 17, 2021 – via Naver.
"Cast Introduction". TVING (in Korean). Archived from the original on 11 November 2021. Retrieved 13 November 2021.
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Kang Jin-ah (September 17, 2021). "슬의생' 99즈가 떠나는 우정 여행...'슬기로운 산촌생활" [Friendship Journey of 'Life of Despair' 99z... 'Wise mountain village life']. Newsis (in Korean). Archived from the original on September 17, 2021. Retrieved September 17, 2021 – via Naver.
"Cast Introduction". TVING (in Korean). Archived from the original on 11 November 2021. Retrieved 13 November 2021.