ABO world
The younger brother who was just adopted was hated by his elder brother because he stole his parents' attention from him, but his older brother came to save him after he was bullied. From then on, the younger brother's hatred towards his elder brother began to waver because of this incident.
When he grew up, his brother gradually accepted his younger brother, and his feelings for his brother completely turned into liking him, but he didn't know it until a misunderstanding made his brother see his heart clearly, but his brother avoided him because of the misunderstanding. The younger brother began to show love to his brother, and his brother avoided him again and again, but his heart was slowly shaken by his brother's sincerity...
Purpose: The love of an adopted brother is always available