I haven’t designed characters at a time, instead, I developed characters gradually. As characters connect closely to the story, my characters changed with stories. I set proportions for character autonomy well before my final story. since there would be three characters in my film, it is more important to identify differences between those kids. So firstly, their hair styles are different as well as their costumes. Secondly, in terms of their personalities, they could have different reactions to a same thing and their expressions would be told.
As for summer madam, another important character in my film, she was quite abstract at the beginning but it was difficult to draw. Also, it is difficult for audiences to connect with summer. So I exaggerate my first design about her. Then I reduced many details to simply the characters.