Abohis Royal Highness the Crown Prince Is Ill. What Should I Do?

ABO settings Deep depression + world-weariness His Royal Highness × Gentle and super patient + little clever doctor Dr. Yin His Royal Highness: I refuse treatment. Dr. Yin: Long-term drug use can lead to addiction. His Royal Highness: You are my medicine, it doesn't matter if you are addicted. Dr. Yin:!!!∑(°Д°ノ)ノ Dr. Yin: Farewell As the only Crown Prince of the empire, Lord Lencier fought bravely despite the fact that his father did not care for him and he had no mother. He carried the secret that he was a psychopath. Lord Lencier's three daily questions What to live for? Would it be better to die? It's so annoying. Is it better to destroy the world? Until he met Dr. Yin who insisted on treating him. Doctor, I am sick and only you can cure it.