"Children should study hard and then find someone older than you to fall in love with."
"Why are you looking for someone older?"
"The older ones will take care of others, so six years older is just right."
"But you are the only one around me who is six years older than me..."
"Ah, do you like me?"
"Why are you so smart? Child, do you want to fall in love with your brother?"
Philosophy: A childhood sweetheart's little sister secretly falls in love with the older brother she grew up with.