An online friend of Nomoto's, she loves to eat but has no interest in cooking, so she eats out or eats at convenience stores. She has followed Nomoto's social media for several years, enjoying her food posts, but only begins chatting more directly with her after Nomoto writes about her interest in a recently released lesbian film. As Nomoto comes to understand her own sexuality, Yako gives her advice from her perspective as an asexual lesbian.