It's definitely the best Asian drama I've seen alongside "1 Litre no Namida". As the story is adaptation of a wonderful novel by Daniel Keyes, the plot is absolutely perfect. And also, precisely in such dramatic but not mawkishly sentimental stories unfolds the incredible Japanese aesthetics, which makes you feel an interesting feeling of painful beauty and unaccountable nostalgia. Besides, the acting of Yamashita Tomohisha is really flawless: he fully incarnates a mentally disabled character and does it with absolute delicacy and sensibility. I also was impressed by the actors playing his friends as they really managed to create a perfect "friendly chemistry". By the way, the soundtrack really suits the scenes and you can see a lot of brilliant and touching moments created by their fusion.