LMDKDJFJF THIS IS SO FUNNY BC IN CANON NATSUME HAS TO TEACH REI, WHO PUTS ON A GRANDPA-CHARACTER ACT, HOW TO DO TECH STUFF TOO BC HE ALSO GENUINELY DOESNT KNOW HOW... he taught him how to play mobage actually... aka worry not natsume believes in equivalent exchange, he can trade arcane arts (magitech) for arcane arts (texting)