Beelzebub felt something in him shattering and quivering. It was his hands but also something else intangible to him. The house was silent and the fact that he had slept without noticing anyone attacked it could only mean the other person had took control of almost everywhere in the house.
His instinct tells him to run. Beelzebub didn't follow his instinct as he knew that if he run now, he would regret this moment his entire life.
His first thought was to visit his parent's room as they were the two person to organize the house and to protect them.
His small legs brings him up to the staircase where he noticed blood along the way. Oddly enough, there was no body that he could find despite the amount of blood that he saw coloring the tiles around him.