Yosuga no Sora is a romantic drama anime that explores the complex relationships and emotional struggles of its characters. The story follows Haruka and Sora Kasugano, siblings who return to their countryside hometown after the death of their parents. As they try to adjust to their new life, they encounter old friends and new acquaintances, leading to intricate emotional entanglements. The series is known for its mature themes and exploration of taboo subjects.