Eifie and Sakura! Enju City Once Again!! - S5-E17
Audio problem: When Brock says that he cannot tell which of the Kimono Sisters is the most beautiful, his mouth does not move. This also happens with Satsuki after Jessie asks the Kimono Sisters if they are looking for dance instructors. (00:03:13 - 00:04:48)
Answer: There are a lot of fan theories around this, but the most common theme is that Pikachu had another trainer before Prof. Oak, who gave him to Ash. Pikachu didn't appreciate being handed over.
Ssiscool ★