The three of them grew up together since childhood. They are not brothers and sisters, but more like a family.
The gentle and polite elder brother takes good care of his younger siblings, but he falls in love with his younger brother.
The arrogant younger brother. He protects his sister and loves his brother deeply.
A sister who has been cared for since childhood. After discovering her brothers' feelings for each other, she knew that love has nothing to do with gender.
Time is so short, I just want to think - we are all happy!