An idol who also works as a chef. He used to perform as part of a duo with Rinne Amagi. Though he's someone very easily swayed by the words of others, he has an overall chipper personality. He becomes wild and brusque once his stomach is empty. Normally, though, he has a friendly atmosphere about him and feels easy to talk to. With a mischievous voice, his performances are light and carefree. Niki works part-time at Café Cinnamon.