Not Equal≠ Not Equal; ≠ ノットイコール; ≠- Not Equal

Ryou's parents got separated when he was just a little child. The last time he saw his father was just like looking at an older brother. He has been living with his mother since then, but the time has comed to visit his old man. Surprised at first that he still looks very young, Ryou start thinking a lot of the past. But what will happen to him when time tricks him and he gets to live in the past?