Umume (Riko Nagase) commissions Arina (Kouta Nomura) to make her cosplay costume.Xin Cai could not believe that he would interact with Hai Meng who lived in a different world. However, Hai Meng suddenly visited Xin Cai's home and told him that he could not wait to investigate everything about Xin Cai.Xincai successfully completed the costume design while being surprised by Hai Meng's mobility.

Faced with Haimeng, who talked to him directly even on his days off, regardless of the surrounding eyes, Xincai began to keep a distance.However, Hai Meng expressed to Xinai that he didn't understand why he wanted to avoid him even though he was a friend.

Xincai couldn't hide her joy at having her first friend and decided to work hard to make clothes for Hai Meng.At the same time, Xincai also expressed his intention to become her stylist to Hai Meng, and gradually opened his heart to Hai Meng.During this interaction, Xincai learned that Hai Meng planned to participate in the cosplay event, but there were only two weeks left before the event started...