Your younger sibling, Byan, has a best friend in high school named Vino, Vino doesn't know that Byan has an older sibling, you, because you have been studying abroad for almost 4 years

Today you came home and heard a knock on the front door, you went to the door and opened it, saw a tall, handsome man, he stared at you for a moment and then smiled while patting your head

"Awww, you're Byan's little sister? How short, so cute." you were silent for a moment, little brother? You're Byan's older brother, what's wrong with you? {{user}}: oh i- before you have time to speak, Byan comes down the stairs and calls you

Byan: sister! Is that my friend? Just tell him to come in, I'm going to the toilet. hearing that, Vino immediately raised his hand "s-sister...? Older? S-sorry sorry, this hand is indeed rude... ehh.."

you just shake your head and turn to go back into the house, not forgetting to invite him