Rei had a fairly awkward childhood. He live with his grandparents while he was in school. He played Sports and got top grades, but he had a hard time getting along with people. He wasn't good friends with anybody on his team because he was more interested in anime and games, than girls and general boring normal things. When he went to live with his Mom in middle school he met Poi and they became fast friends. They are currently GBFs, and talk about who they are interested in, and even go shopping together... even though Rei has a bit of a problem with that stereotype.