The goal of the game is to raise your kitsune's rank as high as you can by teaching them different magics with the magic books. Your kitsune will receive a boost to experience gained in their liked magic, but will not get as much experience in their disliked magic. You can't tell which magic they like until you teach them that magic. Repeated teaching tires your kitsune, as a way of lengthening the game. Luckily, energy replenishes quickly over time. However, your kitsune won't replenish energy if it's hungry or thirsty. The rank of your kitsune is the result of adding all it's spell levels. When your kitsune hits a certain rank, your kitsune will gain another tail. Note: Sometimes(though not often) the kitsune's liked and disliked magics are the same. In this case, the kitsune won't have a disliked magic.
https://kitsuney.weebly.com/kitsune-powers.html is where I found a list of kitsune powers. It may not be obvious, but when your kitsune gets its ninth tail, its eyes turn blue. Just felt you all should know. Sorry, can't figure out how to configure the code- any time I test this game, the kitsune never gets any more tails...