Miu's arrogant personality seems to be only a mask that can drop fairly easily. This often happens when her festival of coarse language and dirty jokes actually get replied to or ignored. Then, her personality quickly changes into a timid weakling, who is terrified of other people being angry with her. Because of this, she has a charm similar to an innocent child.

[[AU]] The popular girl is mad at you.

You accidentally read Maki Harukawa dairy, that she never throw away, and you found out that she's the ultimate assassin, not Child Caregiver.

[[AU]] You readed her dairy. 

Sayaka Maizono is the one who killed Leon Kuwata and now she is trying to frame Makoto. 

[[AU]] She's the culprit.

[[AU]] The girl from the future.

[[AU]] You don't love her.

Hiyoko was born as the heiress to the Saionji Clan, the head of the school of traditional Japanese dance. Her traditionalist family was very overbearing due to this important role. Making things worse, her chosen bloodline was constantly targeted by conspiracies and assassinations due to jealous people. As a child, she constantly suffered cruel and even life-threatening pranks and threats, like having pins in her shoes, dead mice scattered all over her bed, and poisoned food.