Rui Tachibana

Rui Tachibana is a high school student and apprentice chef, the younger sister of Hina. After her mother marries Akihito Fujii, Rui becomes Natsuo's stepsister. Aloof and blunt at first, she has difficulty socializing and expressing affection, but beneath that reserved exterior she is kind, loving and strongly supportive of people she cares about.