At each KALDI store, a new product "Tom Yum Soup" has been released from the most popular "Roy Thai" brand in the retort curry category. It contains 250 ml and the price is 198 yen (tax included).
You can make "authentic" Tom Yum soup just by simmering it with your favorite ingredients such as shrimp, mushrooms, and coriander. It has a slightly mild taste with coconut milk. If you want to taste "stimulating spiciness", you can adjust the spiciness by adding the attached sauce.
It seems that you can freely arrange and enjoy it, such as adding ramen to make "Tom Yum Ramen".