Phim xoay quanh câu chuyện của Yumi, một nhân viên văn phòng bình thường nhưng sống theo quan điểm của nhiều tế bào não trong đầu cô ấy điều khiển mọi suy nghĩ, cảm xúc và hành động của cô ấy. Vì cú sốc sau mối tình không thành, Yumi đã không còn tin vào câu chuyện tình yêu. Tuy nhiên, tế bào bị ngủ quên của Yumi sẽ được Goo Woong đánh thức. Liệu rồi Yumi có chịu thay đổi, có được hạnh phúc?
Episode 1 7.5
Ngày phát sóng: 2021-09-17
Thời lượng: 61 min
Tổng quan: Cells live inside Yumi's head, a 32 year-old who works at Daehan Noodles' finance department. In her dull life where her main concerns are what to eat or wear, only one thing excites Yumi and her cells — Woo Gi from Sales! He's handsome, gentlemanly, and 5 years younger... Age doesn't matter if he's just a crush, right? Or she thought, but Woo Gi keeps hanging around her. Is this a green light?
Episode 2 7.3
Ngày phát sóng: 2021-09-18
Thời lượng: 62 min
Tổng quan: Yumi gets to go to the flower festival with Woo Gi, alone! However, Ruby keeps following them and disrupts the date of her dreams before it even begins. The ultimate chase between Yumi and Ruby begins. Meanwhile, Woo Gi makes up his mind to ask Yumi the question that has been on his mind.
Episode 3 7.3
Ngày phát sóng: 2021-09-24
Thời lượng: 69 min
Tổng quan: Although his first impression was a total bust, Gu Woong turns out to be more decent than Yumi thought. Yumi's heart seemed to be opening up to the easygoing and honest Woong... But why doesn't he reply? Yumi's mind is coming to all sorts of weird conclusions to understand why Woong didn't reply!
Episode 4 8.3
Ngày phát sóng: 2021-09-25
Thời lượng: 62 min
Tổng quan: Woong ran in the rain to bring Yumi to the hospital. Finally, the door to Yumi's heart that was shut tightly opens up again... Meanwhile, Woong's female friend Sae-yi starts developing weird feelings when Woong starts dating.
Episode 5 10.0
Ngày phát sóng: 2021-10-01
Thời lượng: 67 min
Tổng quan: Sae-yi, the friend that Woong often mentioned, turned out to be a woman! "Can men and women be platonic friends?" The cells break into a heated discussion. On Yumi's birthday, Yumi visits Woong's game studio and finally comes face-to-face with Sae-yi at an unexpected place.
Episode 6 10.0
Ngày phát sóng: 2021-10-02
Thời lượng: 71 min
Tổng quan: Having only dreamt of it, Woong finally visits Yumi's house. That night, Yumi and Woong spent an unimaginable night together. At Woong's suggestion, the two of them decide to go on a trip. Yumi's heart races at the thought of a hotel stay with an ocean view, even though her Travel cell is dead. Also Naughty Cell's heart is racing, too...
Episode 7 10.0
Ngày phát sóng: 2021-10-08
Thời lượng: 67 min
Tổng quan: At a friend's wedding announcement, Yumi mentions that she has a boyfriend. When her friends don't believe her, she proclaims that she will bring Woong to the wedding. But Woong is too busy, she has no choice but to... Just as she was about to give up, another situation crops up where it becomes necessary that Woong attends the wedding.
Episode 8 10.0
Ngày phát sóng: 2021-10-09
Thời lượng: 62 min
Tổng quan: Rumors about Yumi and Woong's wedding spread like wildfire. However, the two of them have different thoughts about marriage. Meanwhile, someone unexpected appears in front of Yumi as she prepares for a marathon. Who is this guy who found her missing umbrella...?
Episode 9 9.0
Ngày phát sóng: 2021-10-15
Thời lượng: 62 min
Tổng quan: Yumi finally explodes in anger when Sae-yi moves houses. The breakup alarm gets activated in Yumi's cell village. They risk breaking up if Woong doesn't contact her in 24 hours. While the couple goes through a cold war, Sae-yi takes this opportunity to get between them.
Episode 10 9.0
Ngày phát sóng: 2021-10-16
Thời lượng: 61 min
Tổng quan: Yumi's Love cell is good at everything, but she has one weakness. Thus, the cells suggest that Ruby becomes her private tutor to help Love Cell! Meanwhile, Ba-bi who has been paying attention to Yumi's social media posts, gives Yumi an unexpected suggestion, making her heart race.
Episode 11 9.0
Ngày phát sóng: 2021-10-22
Thời lượng: 67 min
Tổng quan: As the two of them start living together suddenly, they learn about the sides of each other that they never knew existed. Both Yumi and her cells grow to like Woong even more. If Woong feels the same too, perhaps they can...
Episode 12 10.0
Ngày phát sóng: 2021-10-23
Thời lượng: 64 min
Tổng quan: After Yumi brought up the topic of marriage, their relationship grows awkward for some reason. Meanwhile, Woong and Ba-bi attend the same dinner party by coincidence, and drunk Woong forgets everything that happened that night. What could have happened the night before? Woong feels anxious all of a sudden...
Episode 13 10.0
Ngày phát sóng: 2021-10-29
Thời lượng: 63 min
Tổng quan: Woong breaks Yumi's precious table while changing a light bulb for her. Seeing Woong go to extreme lengths to replace her table, Yumi has mixed emotions... On the wedding day of Woong's friend, Yumi decided to go on a date with Woong after a long time.
Episode 14 10.0
Ngày phát sóng: 2021-10-30
Thời lượng: 62 min
Tổng quan: Yumi and Woong decide to take a break. Yumi now has to spend time alone when she used to spend it with Woong, so she seeks advice from Ba-bi... After some time, the two of them meet again at the place they first met. What would Yumi's decision be? And what would Woong's decision be?