Yumi's Cells. Volume 3

Yumi and Un are happy in their relationship! It seems that they are a perfect match for each other. But doubts are starting to creep into Yumi's mind. After all, Ku Un has a very attractive colleague who… is in love with him! She even gave Un yuzu syrup when he was sick. This is definitely not just a simple act of care… What if she takes Yumi's boyfriend away? And Un has also started to dedicate more time to work. Is it really the end of their relationship soon…?!