This is the story of a protagonist who transmigrates into various worlds and plays the villainous male supporting character,
trying every way he can to "break up" the main couple.
His methods include, but are not limited to, forcing them apart, crying and making a scene, threatening suicide, using poison or curses, coercion and temptation, and relentless pursuit,
all in order to make them go through hardships and fall even more deeply in love.
But in the end, he gets caught in a love polygon himself.
The main male lead, furious and distraught: "Didn't you say you loved me most, and that you'd rather die than not be with me?!"
(They glare at each other, even angrier.) "You even use the same lines on both of us?!"
Theme: Sincerity for sincerity
