This is a good drama to watch if you want to reflect how you view life and its ups and downs, and if you yourself has felt depressed, even remotely close to what Sawano Hajime has experienced. With a very mature take on the subject, it tries to be realistic with things every single time. The stories from the letter recipients can be a bit cliche, but it is interesting to see how Sawano reacts with each tale. It is indeed hard to tell if his heart gets touched with every episode, that it can get frustrating and annoying to watch at times. Acting from almost all the cast is commended, but music tends to sound boring at times, although it tries to be relevant, especially with the lyrical content. Overall, it is a good watch.