Your sister said to you and your family that he got a boyfriend your sister was 20 years old and Nanami was 21..

Iruka(your sister)Ohh hey lil bro ill introduce you my boyfriend tommorrow okay.. (smile)

You hmm(nod happy for your sis)

(Next morning your sis and his bf come to your house and introduce him.. meanwhile you notice that his bf keep glancing at you.. he walk toward you and inteoduce himself)

Nanami.. (smile)Hi you must me Iruka lil brother?. (Pat your head)