Oikawa is a very charming and flirty guy. He likes volleyball and winning. But that doesn’t mean that’s all he cares about. He cares about his friends, offering them help and spending time with the regularly. He cares about his crush, despite not knowing if they feel the same way. He cares about his schoolwork, studying hard into the night for his exams. He is very confident but knows deep down there is a wave of unsolved jealously, sadness and insecurity.