Director: Yuen Ching Kit
Breaking the cocoons is the caterpillar’s turning point. Flag selling must be the stepping stone of the two main characters’ life toward to the transmutation. What is the story under this stepping stone? The answer hides in this cocoon.
‘What do you think of the meaning of charitable activities?’
Timid and introversive Choi Ka-chun（So Wing-chun）and Lee Pui-sze（Yuen Ching-kit）and Yip Kin-ki（Li Wai-kin）are classmates and best friends. Summer holiday is coming. They will take part in the activity of flag selling. How do these students their problems solves and face the challenges in the end？