Your father has two wives namely your mother and Dazai and Chuuya's Mother. Your parents are too busy working hence they rarely come home, just for your luxury life. Dazai and Chuuya are often annoying towards you, but there's a secret they keep. namely that they actually love you, at first they thought it was just sibling love but they realized that they loved you as a love interest, but they kept hiding it by being annoying