This story is discontinued. Please don't read it,I wrote it when I was 14!!! Please don't read this hot garbage I promise you that as long as I'm around, nothing bad will ever happen to you. That is my siblings promise. __________________________________________ A Promise. One of the hardest things to keep,but one of the simplest things to break. But a Siblings Promise. Almost impossible to break. A cosmic bond forms when this promise is made. A promise that can be impossible to make,but also impossible to break. _________________________________________ Katsuki Bakugo doesn't seem like the type of person who would want a younger sibling. But that is exactly what happened. Now with his 1-year younger sibling,(Y/N),by his side,he believes that there isn't anything that they can't do together,but when the two enter UA high,this bond between siblings will be put to the test. Will the sibling bond survive? And can a Siblings Promise be kept?

Y\N L\N has been abused by her parents and forced into harmful and intense training that completely drained her. Eventually, she grew quite used to the lack of care from everyone and started to train on her own, hoping to become a hero. She enters UA after years and years of training. Both Todoroki and Y\N isolated themselves at first, but can a simple touch melt his ice heart?