Bakugou in his early childhood had some bad experiences with his mother at the ages 7 and older. His mom would abuse him and neglect Bakugou, he took his rage out on Izuku in his child hood. As matsuri was getting older he started to have accidents at night along with horrible night mears..when he moved out to UA. He was already a regresser in middle school so one stressful day the blond had went strait to bed after class and rolled off around...(read to find out!!!) This is not a kink story so please don't liable it as one. Enjoy!