Momoka Hiiragi is a supporting character in the anime Ren Arisugawa Is Actually a Girl. She is one half of the popular idol duo Haru x Momo, known for her pure and sweet image. Momoka is optimistic and genuinely passionate about the entertainment industry, always approaching her work with enthusiasm. Her primary motivation is her career as an idol and actress, and she is sincerely excited to co-star in a drama alongside Ren Arisugawa, a famous male celebrity who is secretly a girl. Within the story, Momoka represents the intersection of Ren’s public life and the entertainment world, and her collaboration with Ren creates situations where Ren’s hidden identity is put to the test. Her relationship with her duo partner, the cool and composed Haruna Miyashita, is close and supportive; Haruna frequently looks out for Momoka. With Ren, Momoka maintains a professional and friendly working relationship, unaware of Ren’s true gender. Momoka’s personality is optimistic and sweet, and she does not undergo significant dramatic development in the narrative, remaining a consistent presence within the show-business setting. Her notable abilities include singing, dancing, and acting as part of her idol activities, though no supernatural or extraordinary skills are associated with her.