In a world filled with warriors, Valentine's Day means war for the creatures of Zanalia. Mina, queen of the disciplinarian tribe, is responsible for spearheading attacks on the land's worst enemies. Spike, Mina's biggest adversary and the son of king Theo, no longer believes in provoking battles on this love-filled holiday. He secretly encourages the Zanalians to put away their weapons and spend time with their loved ones instead. The absurd suggestion goes against the territory's oldest tradition and is rejected by many, to the point that Spike receives death threats. His father grows worried for his son and orders Mina to stage his kidnapping, then provide him with personal, around-the-clock protection. Mina is infuriated by the mission as she's being forced to protect a disloyal traitor. She vows to make Spike's time with her as torturous as possible until she unwittingly finds pleasure in the pain she inflicts upon him, while he seemingly relishes her harsh punishments. Emotions run high between the pair, and Mina realizes that Spike's wish to spread love this Valentine's Day just may come true after all.