I got distracted and was looking up menstruation and PMS symptoms so here we are.

Content Warning for menstruation if you're uncomfortable about those things.

MC has been different lately. Ace and Deuce have noticed her mood swings and how she snapped at Grim for being rude. Sometimes they'd see her on the bleachers sitting out for P.E because she got hit by a wave of fatigue and joint pain. They even asked Trey if he had some idea. However, he did not know much.

They didn't want to bring this up to Riddle. Anybody except him. Riddle found out from Trey anyways. Riddle is a sorcerer, not a doctor, so he didn't have any idea whatsoever. Riddle didn't think of asking Cater.

A day or so later, Ace and Deuce noted that MC mentioned that her chest felt sore and that she felt bloated as well before first period. Kind of concerning, but didn't think of talking to Professor Crewel about it.

During lunch everyone noticed how unusually tense MC was. "Hey, are you alright? Something seems to be bothering you." Trey asked, eyes furrowed in concern. She waved her arm in dismissal. "I'm fine. Please don't worry about me." She replied, going back to her food.

After she finished eating her food, MC looked at Ace Deuce, and Grim. "I'm going to our next class. Grim, don't cause trouble." They nodded, and she got up to leave the Cafeteria. At least until she felt blood trickle down her inner thigh, visible under her skirt.

She never felt so awkward in her life. Riddle's eyes widened in shock while he placed down his utensils. After a moment he regained his composure. "Cater, can you bring her to the infirmary?" The orange haired man got up, grabbing MC's hand. "Okay~ Riddle-kun!" He escorted the girl away while many of the students, especially the nonhuman ones, looked on in confusion.

~~~

I have no idea on what to add here so feel free to give me ideas in the comments. Or place a request in the request box for me to expand upon this.