Coming back to college as a sophomore, U-yun meets Jin-hyeong, a TA with a mysterious charm. After U-yun blurts out a sudden confession, the two unexpectedly end up living together in a studio apartment. A week into living together, U-yun goes in for a deep, passionate kiss, but Jin-hyeong asks him to wait, revealing he has a very specific "fantasy" about physical intimacy. Just what kind of fantasy is he talking about!? Will they be able to push past all their wild fantasies and delusions to successfully survive their first night together? "I just want to know you better."

Explores growth of Yumi an office worker and the myriad of cells inside her brain in imaginative ways.