It was the worst possible week for Hinata's favorite time of the year. It was that one week every three weeks that she usually spent holed up in her room or with her head bowed lower than usual in class. Because Hinata was very aware of how that special time of the month affected her and didn't want to subject anyone she cared about to her very excitable hormones.
Why Tenten and Sakura thought it would be alright to drag her to a Halloween party, she would never understand. They both knew about it. Hinata on her period was as bad as, if not worse than, an alcoholic Rock Lee.
"For the sake of being in character! No one will suspect your friend is visiting!" Tenten had gleefully declared as she and Sakura tag teamed Hinata to get her into her costume.
Hinata didn't think that was justification enough to torment her like this. Going costume shopping with Tenten, Ino, and Sakura. What in the world had she been thinking? Hinata would have been happy to wear Neji's black 'Budget Ninja