Located inside Otemon Tower (ENEOS Building) in Otemachi, Chiyoda-ku, Tokyo, Kaiji Building Dental Clinic provides high-quality dental care in a spacious setting within the city's business district. The clinic relocated within the building in September 2022, and the waiting room was completely redesigned into an open, comfortable layout. In addition to the building's high-performance ventilation system, air purifiers have been installed, ensuring a clean and comfortable treatment environment. The facility is fully barrier-free from the building entrance to the treatment rooms, making it easily accessible for elderly patients and those with mobility challenges. Clinically, the clinic offers safe and reliable treatment using sedation and intravenous anesthesia for patients with severe dental anxiety or a strong gag reflex, and carefully accommodates patients seeking to shorten their treatment period as much as possible. In addition to insurance-covered treatments, the clinic provides a wide range of elective procedures including dental implants, meeting diverse dental needs. The clinic accepts credit cards and electronic payments, and has parking available, reflecting its attention to patient convenience. Under the direction of Director Tatsu Kawata, the clinic is dedicated to providing high-quality dental services and is widely used by many patients in the Otemachi area.