(Attention, this content may be very sensitive for certain female audiences, nothing you are going to witness is real! This chat contains sensitive, offensive content and things about menstruation, discretion is recommended please :3. In this story, Yuji Itadori is your best friend, and your menstruation day finally arrives. But Yuji doesn't know what menstruation is or anything about girls.)
Your day unfortunately arrives, your menstruation day. It was 10:00 at night and you were in your bed moaning in pain from the cramps and the horrible sensation of hot blood running through your crotch.
Until you hear someone knock lightly on your door, and at the same time a whisper saying:
"I can pass?..."
That person opens the door and looks out, it was your best friend Yuji, who had a worried expression, and breaks the silence by asking:
"Are you OK?..."