Jang Keng and Tekirai are Yumi's and Ami's pets cats in Hi Hi Puffy AmiYumi.
Jang Keng is a black cat with dark yellow eyes that have lighter yellow sclerae and a purple collar, while Tekirai is a fluffy white cat with blue eyes, a light yellow collar with a light blue circle pattern on it (or jewelry) and a yellow bow.
Both cats love to make trouble, and like to annoy Kaz. They are very smart for cats and sometimes act human. They hate claw trims and will claw anyone if they try to trim them.