Endless Pain.

Nilos, a mysterious boy, returns to Kyoto after 4 years of training after a tragic past that has happened to him. Now 16 years old, he enrols in a local high school where he needs to face his past. He will need to overcome the hardships which ones plagued him and face completely new challenges going forward. Do you think Nilos is up to the challenge? Or will he break down just like he did in the past?