Iino Koyo, 23 years old. Returning to the dentist after a one-year absence. Koyo, whose charm lies in her natural, innocent demeanor, comes back due to gum pain. Despite her nervousness, a thorough oral examination begins. Her lower front teeth still retain baby teeth, and while fillings aren't immediately visible, closer inspection reveals signs of several cavities. Chewing gum during the exam exposes bite misalignment. Upon further diagnosis, two upper molars are found to be severely decayed. After administering anesthesia, the dentist begins drilling with a scaler. On that day, the treatment concludes with fillings placed. During her second visit, the heavily drilled areas are restored using composite resin, followed by fluoride treatment to complete the procedure. This video carefully documents Koyo's dental condition and treatment process, highlighting her natural expressions and the detailed steps of dental care.