For people who don't get it, japanese school start at April 1st, so everyone born from April through March will be in the same class, which makes her 8 months older than him.
>your birthday >your family throws your sister (and presumably her friends as well) a doll party. her birthday isn't even close. >"oh yeah btw it's also [you]'s bday we guess" >you're relegated to the sidelines on your own birthday
>your birthday >your family throws your sister (and presumably her friends as well) a doll party. her birthday isn't even close. >"oh yeah btw it's also [you]'s bday we guess" >you're relegated to the sidelines on your own birthday