Reina heard a loud thud and ran to the bathroom where it had come from. There she found her son Yuichi, who had apparently overheated after soaking in the bathtub, collapsed in the shower area. Checking his condition, she found him not breathing, and fearing he would die if he continued like this, she desperately tried artificial respiration. Yuichi had lost consciousness, but somehow managed to regain consciousness. Feeling relieved, Reina looked down at his lower body and saw that his penis was violently erect. It was so impressive that her hand instinctively reached out for it...