To begin customizing your character's appearance, you'll need to obtain the Looking Glass Karakuri. To do this, you'll need to open up the Menu screen and head over to the Karakuri tab. Here, you'll find all the Karakuris available, and you'll be able to purchase the Looking Glass Karakuri for 1500x Kemono Orbs. Note that you will need to purchase all the previous Karakuris in order to unlock Looking Glass.
Once you have the Looking Glass Karakuri, you can place it in the game world just like any other Karakuri. Simply drag and drop it, and it will appear in the game. Now, all you need to do is interact with the Looking Glass Karakuri to begin customizing your character's appearance.
When interacting with the Looking Glass Karakuri, you will be presented with a variety of options. You can change the color of your character's skin, eyes, and hair. You can also choose different facial expressions and hairstyles, as well as customize accessories such as hats and glasses. Finally, you can adjust the size of your character.
Once you're finished customizing your character, simply click the "Save" button and your changes will be saved. Now you have a unique, one-of-a-kind character in Wild Hearts!