The fried chicken shell comes filled with "real taco fillings," which include lettuce, salsa, corn, taco mayo, and cheese.
The tagline accompanying the Chaco goes "No shell. All chicken."
While both Taco Bell and KFC operate under Yum Brands, and Taco Bell can be found in the Philippines, the Chalupa (Naked Chicken or otherwise) does not appear on the Taco Bell menu there.
Photo via KFC Philippines.