Danganronpa 2: Ultimate Luck and Hope and Despair Vol. 1 (manga)

When a new class of students at the (in)famous Hope's Peak Academy find themselves on a surprise school trip to a tropical island, they also find that suspicion and death is the only ticket home from this so-called paradise! Here, in the name of "hope," Ultimate Lucky Student Nagito Komaeda is willing to kill anybody and everybody...including himself!