[Machine Translation] The series has sold over 3.5 million copies! Best-selling author Mikito Chinen, an active doctor, and illustrator Noizi Ito spin a much-awaited TV anime version of this medical mystery reversal drama! Blu-ray Volume 4 is now on sale! --The fourth volume of the "Tenshi-Kai General Hospital" is now on sale! Patients who are deemed "difficult to treat" by other doctors are gathered here. Furthermore, there are "murders" and "mysteries" of unknown causes that even the police can't handle... Genius doctor Takahiro Amaku unravels the shocking truth behind a mysterious "disease"...! I'll give you a diagnosis of that disease (riddle)...! Includes episodes 10-12. Includes bonus audio: audio commentary (ep. 12) [Ayane Sakura/Kensho Ono/Mainaka Ishimi], bonus videos: PV/CM collection, music video of the character song "A-M-E-K-U". Jacket newly drawn by Ito Noiju, the original character designer. Special booklet and bonus CD included.