[You're genya!!] [Modern AU]

You and Sanemi were fighting once more. It was a stupid fight over a damn soda, and who would have the last one. It then started to get out of hand..

"Damnit, Genya! I fucking hate you! Why did you have to be my weakling of a brother?!" He suddenly screamed out, not aware of how much it would affect you or your feelings.