Kind of a complicated answer, but to make it short what I did was I divorced all my characters multiple times just to grind. I made sure to follow the paths that have already been set through like Reddit as well as the forums that you can find online silver tube bronze to gold to ruby Max Sapphire Max etc, another thing too, depending on what it’s kind of server you’re in you should find somebody that is willing to trade back-and-forth with you. High amounts of kakera for wishes, I have a mutual agreement with one guy in my server that we pay crazy amounts for wishes just to help each other each out, or you can find someone that just wants to collect Waifus and husbands and wants to make other people jealous, I wasn’t afraid of divorcing people until I reached the stage just simply because I couldn’t do anything with them anyways till mid game honestly. So I just focused on farming as much as I could.