I don't know how I ended up here but I am here. This is a very beautiful performance of Regret. I have no idea what all these comments say. I saw one comment in English and it just said Doctor doctor.
To all of you: The title of 'Urami' written as 憾み means REGRET. It dose not mean RESENTMENT expressed as 恨み (Urami). They are homonyms in Japanese language. So, please do not misunderstand it. Otherwise, you will misinterpret his genuine spirit and an underlying motive for the masterpiece by Rentaro TAKI.