Siera komori is yui's younger sister. She had always been in her sisters shadow and had always been ignored. But what happens when that all changes when she meets the vampire boys?

There has been something hidden for a long time that neither the vampire family never knew. Especially for Karlheinz before Yui moved in the Sakamaki mansion. What Yui forgot, is herself being a puppet princess. A rare ability for puppeteers to be able to control marionettes or dolls with some kind of magical finger ribbons that summons magical strings. In addition, they put a little bit of they're soul in them. Though, this heroine maybe naive, but she has been living her life to endure all the pain she could get from the vampire's. One night, she was hiding herself in her room not wanting to see the sadistic vampire brothers. She couldn't use the silver knife to kill them. But she can't do that. She loves them as if they were her human family. That night she was in her room, she knocked one of her suitcase and found something. Her dolls, and her ten magical finger knots that controls them. Would Yui be the same weak person? or will she be able to protect herself with puppet magic? Find Out!

Well your Karlheinz one and only Daughter. Started: 10/31/17 Ended:

Yui isn't coming alone her adoptive sister is taging with her. Her sister is human...HA just joking! She's definitely not your average girl or human. She captures everyone's attention from her mysterious aura, but why is she there and what for?... (I think you guys will like the story please check it out! I think in the end it's better. Disclaimer: i dont own Diabolik Lovers only my OC and my own twist of the plot!!)

"You'll go visit a few relatives." Sounds normal.....right? But there's one thing Komori Nozomi doesn't believe in and that is normal and easy. With a mind full of secrets, a dragon as her companion and a sister she hates, she visits the so called 'relatives.' The path she's walking is dark and not easy to do, so can she make it out alive? "My scars tell a story. They remind me of when life tried to break me, push me down and crush me but failed." - Komori Nozomi Warning: I don't own this anime and those pictures. Also the first chapters aren't the best, it'll improve in time.

[Now edited] Yui never mentioned having an older sister by a couple of months. (F/n) Komori was on her way to see her after receiving a letter from her father to check on her. What she didn't know was that Yui lived with a house full of vampires. How will Yui feel after finding out what little truth her sister has hidden from her all these years? I do not own any of the characters but my OC's. I also don't own you just the plot. Enjoy the story

What if Yui actually had a little sister that also came to live in the mansion with the Sakamaki brothers? will she be normal, will the brothers be interested in her? How will Yui feel about not being the only girl in the house? Warning: laziness, cringe stuff, slight mature(will be warned before chapter if it happens) ~X I do not own Diabolik lovers nor do I own any music or pictures in this story X~

"Yo Onii Chan~ I'm back" "WTF!! Is that a picture of me on the wall!?!?!?" "*AHEM* Nothing my little imouto~ So what is it?" "DON'T YOU DARE PRETEND LIKE NOTHING HAPPENED YOU SISCON!" ...... "I'm gonna go on an adventure!" "Without me??" "Yes..." So this is my life as Karl's one and only twin sister... Haizz It's not as easy as you think, no he doesn't treat me badly and all but if you still didn't know by now... he's a...... Major siscon. Follow Karly on with her journey.

You are the sister of Yui, great right? Not really. Your name is Yuki Kamori, you arrive to the mansion with her and go on about your days in the mansion. Falling for one vampire in particular, Shu. Along your journey you meet a boy named Jake, you become friends it he things y'all are more than that. What happens next? Well read the story to find out (it's not as bad as it sounds I swear😅)