Kangtai, in order to take care of his mentally ill brother Shangtai, has been wandering outside, refusing to establish in-depth relationships with others.And Wenying, a talented children's comic writer, although bright on the surface, is deeply troubled by the past.The fate of the two people was intertwined in a chance encounter, and they embarked on a journey full of twists and turns and insights.

The story begins with Kangtai requesting Wenying's autograph. It was originally a simple request, but it triggered a series of events at Wenying's autograph session.Because Kangtai refused to have too much contact with Wenying, he asked Zai Zhu to attend the signing meeting on his behalf. Unexpectedly, his brother Sangtai caused a commotion at the signing meeting.In the face of misunderstandings and accusations from others, Wenying stood firmly on Kangtai and Shangtai's side and protected them in her own way.

Kangtai's heart is full of struggles and contradictions.On the one hand, he is grateful for Wenying's understanding and support, but on the other hand, he cannot accept Wenying's kindness.He was afraid that he would become more vulnerable because of the love of others, as he had in the past.Therefore, when Wenying asked him to become her caregiver, Kangtai refused without hesitation.

At Kangtai's insistence, he and his brother Shangtai decided to return to their hometown.There they hope to find a cure for Sang-tae, while also finding a new beginning for themselves.However, life did not become simpler because of their departure.Wenying fell into deep longing after Kangtai left. She could not forget the person who always protected her.So, she decided to look for Kangtai, hoping to see him again.

In the process of searching for Kangtai, Wenying gradually learned about Kangtai's past and inner struggle.She understood why Kangtai always avoided establishing deep relationships with people, and why he rejected her kindness.

Wenying found Kangtai at the Psychiatric Hospital where he worked.