Noriko's all-consuming new interest has kept her away from school for weeks, leaving her classmates wondering about her well-being. Junichi and Satoshi pay a visit to check on her and soon learn that her absence stems from something far more captivating than any ordinary illness. What they find is a different sort of heat drawing them into an unexpected afternoon of discovery and shared curiosity. As the three explore this private passion, their bond takes on new dimensions that none of them anticipated.