In the Showa era, Aoi felt the incompleteness for this past three years for longing of his childhoodfriend if he is still alive or not. Now that this guy named Takahiko appears to him. Instead of being happy, Aoi's feelings turns into rage due to the fact that for the past three years, Takahiko havent given him a sign that he is alive. Which makes me realize that the pain inflicted by Takahiko to Aoi kun is so hard to bear.