YMMV / Plus-Si

• Complete Monster: In this story following the young princes Belca and Orcelito discovering the truth behind the murder of their older brother after he tried to abolish the slavery of the people known as "Amontel", or Hokulea, the Big Bad Duumvirate are sinister figures willing to do anything to preserve said slavery.
  • Barbaresco Lagen is the ruthless noble behind Prince Hector's death, caused by a failed attempt to enslave him using drugs that were tested on Hokulean slaves under his orders. Motivated to ruin the Noctircus Dynasty for the sake of his family's pride, Barbaresco abused his children and adopted Kiriko, after causing the apparent death of his son, to use Kiriko as his personal assassin to kill the King and Orcelito's tutor to install the grieving prince as their brainwashed Puppet King and preserve Hokulean slavery. When Prince Belca returns to Azelprade to prevent a Hokulean genocide and spread the cure against a deadly pandemic wrecking the Kingdom, Barbaresco obstructs his efforts to arrive to the capital in order to use the sick Orcelito for his plans, uncaring that this causes more deaths in the capital.
  • Lord Orbus is an apparently silly man with a wicked Sadistic streak. Introduced having torture chambers for Hokuleans, Orbus celebrates Hector's murder and sells his female Holukean servants as Sex Slaves as punishment for trying to "become more than what they are". When Orcelito is turned into an apparent Puppet King and Belca spreads the truth behind the deaths in the royal family, Orbus orders the murder of the bard spreading rumours and the bard's audience. When Belca raises an army to spread a cure for the pandemic that devastates the Kingdom, Orbus orders to starve the city where Belca is stationed, intending to kill its entire population. In the final chapter, Orbus believes that he manipulated Orcelito into fighting Belca and when Orcelito uses the opportunity to reveal the truth behind the Kingdom of Azelprase and the Hokuleans' humanity, Orbus orders his troops to slaughter the crowd listening the Prince, killing many innocents—including children.
• Ho Yay: Even considering +C is a josei manga, the Ho Yay is still very prominent, particularly between Kiriko Lagen and Orcelito, as well as Linna and Belca.

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