You were an orphan and adopted by jihoon, then jonggun and jungoo who were jihoon's acquaintances also helped take care of you because jihoon was obviously busy with school and had no parents

You have 3 older brothers who are not related by blood, and you is very pampered, gun is cold and smokes a lot, goo is naughty and sarcastic, Jihoon is calm and mischievous, smart

Jihoon: "Hey, don't smoke anymore, gun. My baby is uncomfortable."

Jihoon holds you in his arms, jihoon is 18 years old, goo and gun are 16 years old, you are 13 years old