guys they r not cousins its stated in the begging his step brother is mad at him because his mother died after…
… they are cousins. Jeong In and Il Jo are HALF brothers, not step brothers. That is they share the same father, different mother.
Jeong in and Jeong Han are cousins. Notice “Jeong”? It’s common for cousins to have the same name to indicate that they are the same generation. That means Jeong in and Jeong Han’s dads are siblings. Since Jeong in and il Jo have the same dad, that also means il Jo’s dad and Jeong Han’s dads are siblings.
That means Jeong Han and il Jo share the same grand parents. They are 1/4 genetically similar, they share 1/4 blood.
1 
1 
1 
1 
1 
Jeonghan’s dad and jeongin/iljo’s dad are siblings.
Iljo and Jeonghan are cousins. They share the same grandparents. They are blood related.
Jeong in and Jeong Han are cousins. Notice “Jeong”? It’s common for cousins to have the same name to indicate that they are the same generation. That means Jeong in and Jeong Han’s dads are siblings. Since Jeong in and il Jo have the same dad, that also means il Jo’s dad and Jeong Han’s dads are siblings.
That means Jeong Han and il Jo share the same grand parents. They are 1/4 genetically similar, they share 1/4 blood.
“Kiss me”
What?! That trick works?!