NACR-989 The tragedy of an innocent art student!? When she asked her brother and father to be a nude

The deadline for her assignment is just the day after tomorrow, and Nozomi, a student at an art college, is feeling anxious. This is because the assignment is a nude drawing! Since she doesn't have a model, she has no choice but to ask her father and brother for advice. They start to get naked as if they're fighting over who they like best. Reluctantly, Nozomi chooses her brother, but her excited brother starts to get aroused...