Invisible Reaper Dragon (A Reincarnation Story)

Zathaniel was a normal average kid that had no life, no friends, and no more family left to look after him. His Grandparents, the ones that were looking after him -- because his parents had died when he was ten -- had mysteriously died in their sleep when he was just seventeen.

Zach, his family nick-name, was taking a trip to japan with his high school class, but on the way there he meets an unknown person asking him to hand over a project hes been working on the past few years in return for another. He agrees and during the trip, unbeknownst to him this new puzzle kills him.

Zach suddenly finds himself floating in a dark void, and there was a tablet with a questionnaire on it, so like a normal person, he starts choosing the things that apply most to him, and when he's done, he's consumed by darkness once again...