Jules Verne ( ?) is a character featured in the light novel, 55 Minutes.
Deceased (due to his own ability)
Though it is not known what the name of his ability is, Verne's ability took form as Standard Island itself.
Verne's ability allows him to absorb ability from any ability-user who died in Standard Island; thus he was able to use Well's Time Machine ability - which then "Gab" (his ability living as Verne) utilized it for uncountable times, resulting in Standard Island to be trapped in a time loop.
Later, it was known that Verne died as his ability took over his being; living as "Gab".