Leo noticed Rena's discomfort. "Are you alright?" "No... I want to throw up," Rena said with a frown. "Do you have a headache at all? Here is a plastic bag just in case," Leo said as he gave one to her from the back seat. Rena grabbed the bag tightly. She knew why she wasn't feeling well, as she usually felt this way two days before or after her period. She would have sudden onset diarrhea as a result, and today was two days after her last cycle. "I'm not carsick. This is because of my period," Rena explained. "Heat might help. I've turned on your seat warmer so that you feel a little more comfortable." Overall, Rena was healthy, but she wasn't immune to the effects of a menstrual cycle. A minute later, Rena felt her seat getting warmer and warmer. As expected,

