If Namjoon/Rapmon was your brother he will..
Aquarius : Ask Jin to didnt get married with you
Pisces : Loves you very much
Aries : Introduce your bias to you
Taurus : Teach you how to do an aegyo 😂
Gemini : Ask you to do a robot dance
Cancer : Teach you how to rap
Sagitarius : Make a mv with you
Capicorn : Pick you up from school eveeerryyyydaaay
Leo : Bring you to the dorm
Scorpio : Telling Jin of you're his girlfriend and make Jin jealous.
Virgo : Change his hair to a Green color 😂
Libra : Makes you swearing everyday
Okaay
The next will be a maknae line chappie 😁😁😁