Bokura no Oukoku

After his grandmother's death, Akira Nonaka moves in with the influential Takatou family and is considered a possible heir. Another candidate, Rei, is introduced as Akira's cousin. Unlike Akira, Rei has no interest in becoming heir and instead develops a strong affection for him. Rei's open displays of affection confuse Akira, who gradually begins to feel a growing attraction of his own.