Though Rantaro can't remember what his Ultimate talent is, he doesn't let that get him down. In fact, he's quite excited at the prospect of learning what his Ultimate talent actually is.

Though he comes across as glib and laidback, Rantaro is the only one to remain calm and press Monokuma for information while the others panic. At times, his attitude suggests that he knows more about what's happening than his classmates, which only heightens the air of mystery surrounding him.