Hadrian Potter: And The Last Yōkai

In 1993, Hadrian James Potter was planned to return to Hogwarts once more, but with a shadowy group working inside the darkness, things don't turn out as planned. With the arise of a mysterious ability, Hadrian wants answers, which only belong to the group that captured him... Are his answers worth working with these people? What do they want with him? And what happened to him?