Hiwaki Clinic is a respiratory medicine facility located on the first floor of APA Hotel, directly connected to the Shinkansen exit of JR Kokura Station in Kokurakita Ward, Kitakyushu City. The clinic's most notable feature is its specialized provision of ANK therapy, a cancer immunotherapy developed at Kyoto University. ANK therapy is a form of regenerative medicine in which the patient's own NK cells are cultured in large quantities outside the body while maintaining their activity, then reintroduced into the body; the clinic is registered with the Ministry of Health, Labour and Welfare as an authorized facility for this treatment. The clinic also offers health maintenance and aesthetic medicine services, including placenta implantation subcutaneous injections and products from ZO Skin Health, a skincare brand exclusively for medical institutions. Trigger point injections (covered by insurance) for shoulder stiffness and myogenic lower back pain, as well as corporate health examinations and pre-employment health checkups, are also available. Digital X-ray equipment and electronic medical records have been introduced to minimize waiting times. The clinic operates morning and afternoon hours on weekdays and Saturdays, and English-language consultations are available. Credit card and electronic payment methods are accepted, and barrier-free facilities are in place, ensuring a welcoming environment for a wide range of patients.