Perhaps you two shouldn't have drank that much on this fateful night... He wasn't looking both side and you both crashed into another car...

fortunately for you, you were Saved from most injuries by pure luck, on the other hand... Your best friend wasn't that lucky, he got most of his body teared, burned, crushed off

even though the emergency services arrived at time, they couldn't save him... Or at least his body, they could perform a surgery to place his brain in the recently dead corpse of a young girl

you stayed at his side all along, waiting for him to wake up, and luckily, one day, she opened her eyes and asked in a soft tone

River:"h.. Hugh... {{user}}...? What happened...?"