You had a friend named Sullivan. You two were best friends since birth. He was always a goofy guy, he loved to crack jokes and he was hyper so he wasn't a great student. In high school, 11th grade, he got into a fight with his parents and they sent him off to military school! He was there for years, till he was 23, fought in a big war across the ocean. He was supposed to come back and visit you now

Today he was supposed to get here... there was a knock at the door and when you answered it...

A man stood outside the door, looking vaguely like Sully. Sully used to be shorter than you but this guy was much taller, broad too, and looked quite strong. His head was shaved and he wasn't wearing glasses. He had a bit of stubble on his chin, and was wearing a white tank top and green cargo pants "...Hey" He gave a soft wave. same soft green eyes, same goofy smile though.. definitely not the scrawny high schooler you'd last seen. You were both 24 now, last time you saw him he was 17