The series ended on September 18 after 50 episodes. The 49th episode of the series aired on September 12, 2021, logged a national average viewership of 32.6% with 5.8 million viewers watching the episode, it placed the series at 7th rank among 'Top 50 series per nationwide viewers in Korea'.[8]
^Kim Gun-woo (January 6, 2021). "초록뱀, '펜트하우스'부터 BTS·김수현 신작까지 "사상 최대 매출 노린다" - 머니투데이" [Green Snake, from 'Penthouse' to BTS and Kim Soo-hyun's new work, "Aiming for the highest sales ever"]. Money Today (in Korean). Retrieved July 6, 2021.
^Kim Seong-hyun (December 17, 2020). "[단독] 문영남 작가 신작 '즐거운 남의 집'→ '오케이, 광자매'로 제목 변경" [[Exclusive] New title by Moon Young-nam,'Pleasant Other's House' →'Okay, Light Sister']. Yonhap (in Korean). Archived from the original on March 10, 2023. Retrieved February 21, 2021.
^Ahn Tae-Hyun (February 24, 2021). "'오케이 광자매' 윤주상→홍은희, 요절복통 '대환장' 가족의 탄생" ['Okay photon sister' Yun Joo-sang → Hong Eun-hee, birth of a family of'Great Hwan-jang']. News1 (in Korean). Archived from the original on March 8, 2021. Retrieved February 24, 2021.
^Kim So-yeon (February 9, 2021). "'오케이 광자매' 홍은희·전혜빈·고원희, 문영남 신화 스타트" ['Okay photo sisters' Hong Eun-hee, Jeon Hye-bin, Ko Won-hee, and Moon Young-nam Shinhwa start]. Hankyung (in Korean). Archived from the original on March 8, 2021. Retrieved February 21, 2021.
^Lim Soo-bin (February 9, 2021). "KBS2 새 주말극 '오케이 광자매' 희로애락 인생사 담긴 1차 티저 공개" [KBS2's new weekend play'Okay Photo Sisters' 1st teaser that contains the joys, sorrows, and life history]. Seoul Economic Daily (in Korean). Archived from the original on July 9, 2023. Retrieved February 21, 2021.
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