Nanami is the Sakamaki's younger sister. She's a year younger then Subaru but acts like a five year old. She has crushes on all of her brothers including her adopted ones the Mukami's. When Yui comes to live with them Nanami hates her and tries to stay as far away as possible. Let's see what happenes ne?

What happens when Yui brings along her adopted younger sister, Ro Komori? What do you think will happen once Ro finds out who/what she truly is? Will she be able to help change the mindsets and hearts of the Sakamaki brothers, or will she be too anxious and disturbed about her past?

[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

A month has passed since (Y/n) started living with the Sakamaki brothers and her 'annoying' sister Yui. Things were peaceful for a while after the incident with Ritcher and Cordelia, however, when (Y/n) was living with the Sakamaki brothers she had learnt that she's the reincarnation of a woman named Aiko, who has demon blood. (Y/n) and the brothers have no idea where the demon blood originally came from but, on one night, when the brothers and the two sacrificial brides were on their way to school a car crash happened and that's when they met four mysterious figures, who are the Mukami brothers, and they were vampires just like the brothers but they were not purebloods. One night, (Y/n) and Yui gets kidnapped by these four handsome vampires and they started craving for their blood in order to achieve their 'apple of Adam' plan that was created by Karlheinz, the Sakamaki's brother and the demon King, however, while (Y/n) was living with the Mukami brothers, (Y/n) began to discover some changes as her story progresses. What will happen when (Y/n) gets along with the Mukami brothers? will she find out who she truly is? who are her old friends? find out in this second story of 'Yui's Sadistic Sister'!

We arrive at a mansion because our father has left for work aka left us in the hands of the Sakamaki's hurray.

You are the Sakamaki brothers' little sister, and I create short fluff scenarios between you and your brothers! Enjoy!

-Hiatus-Im so sorry- If Yui Komori had a little sister that was Secretly a vampire princess what would happen if she met the brothers? When Yui was sent to the mansion you were brought with her. Her little sister (you) has so much secrets hidden away from her. New Story Cover: Wed, Aug 1, 2018 Started: July, 13, 2018 Ended~~~¿?~~~ *First diabolic lovers x reader I have wrote sorry if it is bad. Yui is OOC* I DO NOT OWN DIABOLIK LOVERS. OR YOU. :::::Highest ranks so far....:::::: Kanato~(36) Reji~(1)- Out of 50 Shu~(36)- Out of 828 Ayato~(36)- Out of 1.01k Subaru~(28)- Out of 870 Laito~(31)- Out of 691 Diabolik lovers~(96)- Out of 2.16k Yuisister~(1)- Out of 11 ~~~~~~~~~~~~~~~~~~~ New cover on: Thursday, January 3, 2019

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SMUT WARNING WARNING CONTAINS WORDS NOT SUITABLE FOR SENSITIVE READERS , PLEASE SKIP IF YOU'RE SENSITIVE! It's an OT7 Fanfiction , I'll be making this for each members