>>44168023It's because Serena had the perfect send off. What else would there be for Serena to do if she came back? There's no way for the story between Ash and Serena to go any further because Ash is a dunce. Serena could have come back in SM and had cute interactions with the girls there teasing her, but what interactions with the main cast can she have in PM2019? She wouldn't connect with Go at all, and Koharu and Serena have very little in common. There's no reason to bring her back at this moment.
