Well, OP didn't specify what their level was. Maybe they're already fluent? In which case learning more advanced things does make sense. Although I would never

Well, OP didn't specify what their level was. Maybe they're already fluent? In which case learning more advanced things does make sense. Although I would never trust ChatGPT to use advanced Keigo properly (especially with the lack of context dictated by social settings), let alone to correct it and explain its usage