None could explain why Kazu Hasukawa only remembers 5 recent years of his life. He’s been living a normal life. It means suck, nothing’s really special.
One day, there’s a girl show up in front of him and call him “Kai”. She says that’s his name before he gets amnesia.
The mystery should be revealed. No matter what it takes, Kazu has to accept and release….
This is quite short manga, only last in 4 volumes.