There are many plastic surgery hospitals in Japan. I don't know which is the best, but I have worked in Japan for five years, and what I hear most is the sacred heart of Japan. Colleagues around me will organize groups for treatment from time to time, which seems to have a good reputation. I'm also going to visit their house face to face and bury my double eyelids in the near future. Thank you for your question. I hope it helps your problem.