A project where a mother and son, alone together, watch an adult video while conducting a sex education survey. The son is shy and inexperienced with adult topics, unable to hide his nervousness and confusion. However, urged by his mother saying, "You know I watch things like this," he grows flustered yet instinctively honest, eventually following his mother's aroused lead and taking his first step into adulthood. This secret must never reach the father's ears—five such mother-son secrets are recorded.