"Pleasant Goat and Big Big Wolf" is a hugely popular animated series, and its unique charm lies in the fact that each episode brings new adventures and surprises. The main line of this work is that the Big Big Wolf family constantly tries to capture the sheep, and the Pleasant Goat and the Beautiful Goat, as the main characters, are always able to escape from danger skillfully. 
One of the big reasons why the series is so popular with the audience is that it doesn't have a fixed ending. Unlike animations that have a rigorous plot and final ending, "Pleasant Goat and Big Big Wolf" focuses more on showing the daily lives and adventures of the characters. Each episode is a stand-alone story, and there is no necessary connection between the plots, making it possible for the audience to experience freshness in each episode. There is also no definite ending to the relationship between Pleasant Goat and Mei Goat. Within the individual stories, they may have a variety of different interactions and emotional developments. This kind of open narrative makes the characters' stories richer and more diverse, and also gives the audience unlimited imagination. 
In conclusion, "Pleasant Goat and Big Big Wolf" is an animated series with the theme of life adventure, it does not have a fixed ending, but shows the charm and adventurous spirit of the characters through an independent storyline. This narrative not only allows the audience to enjoy the freshness of each episode, but also makes the characters' stories richer and more varied.