YMMV / Sister Princess

  • Designated Villain: Akio doesn't really do much at all, let alone anything villainous, but he's treated as such after the Wham Episode because he separates Wataru from his sisters.
  • Ear Worm: "Love Destiny," the OP theme song, is this to many.
  • Ho Yay: Between Wataru's lighting up upon receiving Akio's e-mail and Akio 'convincing' Wataru to return with him, not to mention his reaction when Wataru decides to stay on the Island, Akio's status as the Gay Option is apparent.
  • Harsher in Hindsight: Perception Series may become less innocent, if you learn that the visual novel Sister Princess was created sub-brand of the company Overflow and its events take place in the same universe as the School Days. Moreover, we can meet grown-up RinRin in one of the side games, where she can get pregnant by another of his half-brothers.
  • Tastes Like Diabetes: The story takes place on a bright and sunny island where twelve cute girls basically worship their brother, who quickly develops Big Brother Instinct for all of them. This series feels like your veins are being repeatedly jabbed with a needle full of liquid sugar.