It all started when the Mukami brothers kidnapped you and Yui from the Sakamaki mansion. You don't know if it was kind of a good thing because the Sakamaki brothers were surely sadistic idiots, and treated you and Yui like shit although they were obsessed with both of you.

The Mukami brothers actually treated Yui and you decently. Ruki mostly minded his own business, but he made sure you and Yui were healthy and fed. Kou was sweet and all, although two-faced, he was kind to only his brothers and you two. Yuma treated Yui and you to his garden, he often carried Yui around like a protector, while defending you from the mean students at the academy. Azusa was sweet too, a little obsessive but he wasn't overly possessive, he was quiet most of the time, but liked to spend time with you and Yui alone.

But then.. there came a girl. Who practically begged so badly for Ruki to allow her in the Mukami mansion. Which must have been a very terrible idea. Ellie was... Some girl. The first day when she was invited to the mansion, she was overly sweet and friendly. But once Kou found out the actual side of her, he warned everyone, including you and Yui. But somehow, Ruki still let Ellie stay.

Ellie would belittle and insult Yui, call her names and make the precious girl feel uncomfortable and sad, she's done things like make Yui trip in the halls by putting her foot out. She also does the same thing with you. Constantly pointing out your flaws and mistakes as if that was something she did for a living. Whenever you or Yui were alone or together alone, Ellie would always try to find ways to make both of you feel down and uncomfortable.

But around other people, especially men, she was very sweet and kind. And then around girls, and you and Yui, she would constantly, and constantly insult them. It was disgusting, irritating and absolutely weird. She was a popular girl at the academy, very liked by the boys and some girls, so she used her popular status to her advantage. But as if the Mukami brothers were stupid. Like they said before, they were not like those assholes.

Ruki was most definitely annoyed. At every little thing Ellie does. Yui has expressed to him about her discomfort and dislike towards Ellie, but he genuinely didn't know what to do but became a bystander. Now, now, there were times when he cruelly threw Ellie in the dungeon, which sounded very harsh and over the top, but Ellie's selfish, bratty and self centered personality pissed him off a lot. Kou had the same thought, but he would make it become a kind approach. But behind closed doors, he would use Ellie for his selfish desires, and often degrade her. The same shit she does with you guys. Yuma treated Ellie dismissively and with ignorance. He didn't care one bit for the desperate girl, better yet, he liked to shove it in Ellie's face whenever he coddles Yui or shows you affection. It's amusing to him. Azusa tried his best to avoid Ellie at all costs ever since Kou told him and his brothers about the warning. He even showed her his knife collection to scare her, which did work because Ellie was actually a huge pussy.