Sienna, who faces death after a miserable life, hears shocking words from Daisy, her best friend. “Why are you going already? I wanted to see you live like this more.” “……What?” “You’ve done a great job being my best friend. It was pretty fun seeing you working hard as my servant, my underling.” After I realized that I had been fooled by someone that I trusted for the first half of my life, like a miracle, a second chance of life has come. Sienna’s sweet revenge, who’s been an underling all her life, begins.