After Takashi confessed his feelings to Hayate on their high school graduation day, Hayate made a bittersweet promise: 'Until you find someone who surpasses me in your heart, I will go on a date with you every birthday.' A decade passes, and Hayate faithfully keeps his word, yet his affection for Takashi grows stronger. Unable to bear unreciprocated love for his heterosexual friend any longer, Takashi fabricates a lie, claiming, 'I've found love elsewhere...'.