The characters are that follows:

Kim namjoon
Age : 27
Rapper
Family : 2 sons(Yoongi and hosoek)
Divorced his wife as she was cheating on him.
Loves his sons so much and wanted to protect them.
Met Jin in a rainy day
Seems to kill you but his the most sweetest person for his family

Kim Yoongi
Eldest son of namjoon
Age 7
Loves his brother and father
Cute kitten
Loves to sleep
Quite and shy but loves his brother.
Suffered from his mother's abuse to protect hosoek.
Known as lilmewomewo or suga bear.
Family brother and father

Kim hosoek
Second eldest son of namjoon
Age: 6
Ball of sunshine
Loves his oldest brother
Family 1 older brother and a father
Cute
Loves squirrels
Can make everyone happy with his bubbly personality
Comfort Yoongi
Known as Hobi

Kim soekjin

Age 29
Therapist
Family 3 sons
Wife died
World wide handsome
Loves to help people especially namjoon
Loves his kids so much.
Protects namjoon and his children
Notice something about the oldest son of namjoon.
His mother is from Japan.

Kim Jimin
Age is 5
Twin brother of taehyung
Loves his brothers
Sassy
Sweet
Cares about his brothers and father
Thinks that Yoongi is cold and wants to help him.
He is known as mochi or chim chim
Family twin brother and youngest brother and father

Kim taehyung

Second oldest twin
Twin brother of Jimin
Same personality as hosoek but funny
He just Cheers his family
Family oldest twin brother and younger brother and father
Loves his family
Known as taetae

Kim Jungkook
Age is 4
Youngest
Cute and  very energetic
Family 2 oldest brother and father
Comfort his brothers and doesn't like Yoongi.
Loves hosoek and taehyung
Scared of lighting. Doesn't know what happened to his mother as she died when he was young.

Kim soha
Wife of namjoon
Wasn't ready for a family
Abused her children
Doesn't love namjoon and just used him for his money
Age 29

Kim siyeon

Married to jin
She was addicted to drugs after she was suffering from depression.
She died
She loves Jin and her children but couldn't.
Actress
She is 28.

Enjoy and don't forget to vote and comment what you think