I had a very terrifying nightmare. I dreamt my brother and I were in Japan but everyone there was American. We went into a touristy building but it was like some kind of municipal water treatment plant. It was filled with Americans wandering around and my brother went in and was pushing and scissor-kicking people. To me it felt unreasonable but not uncalled for. One guy my brother kind of tripped and he fell into the water below and he was pissed so he asked our names and he said he was gonna beat the shit out of my brother. We brushed it off and enjoyed the event(it was now an event) and then we kind of got separated and I went into the building looking for him. I was happy so I was skipping and I found my brother. He was lying on the ground, shirt open and pants down. He was beat up all to hell and his penis was cut off. There was blood everywhere and he said "I'm having a bad reaction". I was trying to think what to do and I woke up panicking. I had to watch eye bleach to stop it.