I loved the documentary soo much, too. The construction works, the scenario rewritten, the singing training, the health-helping things for Koichi... but what I loved the most were the people, the staff who finally got names and words and stories. It's the most amazing since JE didn't ket such thiings slip openly before, not really, and now we know so much about his staff, his dancers, his manager. (To be honest we three of Russian fandom had a thing about Koichi and the manager, looking at how he's always there helping silently and adoring Kou-chan so much)