No, she isn't a real Reaper; she pretends so in order to look cool.
Despite holding a "death scythe" to look like a Reaper,
she doesn't use it because it gets in the way when she plays. In fact it is of fake blade, with which cannot hurt; in other words, her scythe is a toy.
She insists an ipse dixit that she can drain opponent's soul through their cum, however, she cannot do so but only make them feel so; rest assured. Rather a succubus than a Reaper.