>>46220698Her next major appearance is episode 38 (Aerodactyl) and this one is less about her coming around to liking Pokémon but more her being interested in going on adventures. Ash and Gou literally drag her out but she still has a reason to go - she's struggling with a report at school and she needs some idea of what to do with it. Ash and Gou take her to Pewter City and she writes about fossils, while also seeing Gou bond with Aerodactyl despite being in danger himself. The episode ends with her exclaiming that it was fun to go on the trip with Ash and Gou, showing that it's unlikely she'll have the same reluctance as before.
JN46 (Mewtwo) opens with Koharu almost becoming late for school, listening to her father talk about Pokémon, which serves as a reminder for how far she's come since the beginning when she could care less. 47 (Greedent) shows a kind of condensed version of how she takes to things (at first she doesn't care, but over the course of the episode she becomes more invested in the eating contest and excited to watch it).