In addition to Xiao Xin, his friends in the story also left a deep impression on everyone. Among them, the role of A Dai was the most impressive. His characteristic was that he always had a runny nose and was always slow in doing things, but even so, A Dai's wisdom was shown many times in the film. After reading the whole cartoon, many people have a question, that is, what is the family like in A Dai? What's his name? Never mentioned in the film.
In fact, almost all the parents of other friends in Xiao Xin showed up and introduced them. Only A Dai's parents have always been a mystery, and even the grandmother who is often mentioned has never appeared. Since Yoshito Usui has passed away, no one can answer this question. This can only be speculated.
In fact, in the introduction of one episode, other friends questioned A Dai's identity like the audience, and even imagined that A Dai was an alien. Even if this unit finally explains that it is a brain hole between children, the mystery of A Dai's identity has been puzzling the audience. Because A Dai's role setting is mysterious, he didn't explain his family background and parents too much in order to keep the mystery. Many children's direct weird stories are told by A Dai. Perhaps only a mysterious identity can make the story more substitutive.
But now everyone is watching the play with a magnifying glass, so the clue is finally revealed. Because A Dai has always been particularly interested in science, he is also very knowledgeable. A Dai's parents may be engaged in scientific work. It always makes sense that busy parents don't show up often.
There is no accurate statement about A Dai's identity. You can talk about your conjecture about A Dai's identity, and maybe you will find something new.