However, Hiroto died.

He was unable to withstand the reckless experiments carried out by the newer researchers, who were trying to surpass the results produced by their predecessors.

It was ironic that through death, Hiroto regained his freedom. Through the death of his body, his soul regained its control over his Mana.

Hiroto turned his own body into an Undead to go on a rampage, fueled by his hatred.