Nemesis was the main antagonist of To LOVE-Ru Darkness, who later turned protagonist. She is the master of Mea. She first appears in shadow and talking to Mea only. Her main goal is to investigate the reason why Yami became more like a human and no longer try to act as an assassin. In chapter 23, she finally appears in person and begins to tease Rito about his shyness and try to turn him into her servant. Despite not getting along too well with Momo, they sometimes enjoy teasing Rito together.