Yumi's Cells

Yumi, an ordinary office worker with a routine lifestyle, meets someone from work who causes her Love Cell to return to Cell Town.

Yumi goes on a date with Woogie at the Flower Festival. However, Ruby follows them and tries to disrupt the date.

Yumi is stressed out due to various incidents. Woong is worried that Yumi might reject him after their date.

Yumi passes out, so Woong takes her to the hospital. Yumi starts to have feelings for Woong, and the two go on a date.

Yumi and Woong finally kiss and spend intimate moments together, but she's surprised to know that Woong's best friend, Sae-i, is a woman.

Yumi invites Woong to her place. However, things go horribly wrong when Woong has an upset stomach and the toilet gets clogged.