As a final year student at an art school specializing in painting, Ruka Kanai is struggling to come up with a topic for her major assignment in order to graduate on time. She receives a tempting suggestion from her older brother to paint a nude portrait, with him as the model. Thinking that everything will go smoothly, things take a completely unexpected turn when they start working on the project.CRB-042514-588 Asking her brother to pose nude for a drawing, suddenly the younger sister changed her mind and... As her brother undresses, Ruka is taken aback by the size of his penis, the largest she has ever seen. Intrigued by the size, and desiring to experience intense sensations, she makes a bold proposal before starting the painting: she hopes that he can fulfill her sexual needs and agrees to have an incestuous relationship with her. Despite knowing that this goes against moral and ethical norms, her brother reluctantly agrees to satisfy her lustful request, as she refuses to paint otherwise.
