I Was a Sacrificial Princess, but I Reincarnated and Became the Body Pillow of the Demon King

Yukiko, just an ordinary office lady who loved otome games for smartphones, ends up dying after being pushed onto the train tracks due to her meddling. When she wakes up, she finds herself in the world of the game she had been playing intensely, reincarnated as Egret, a detested white-haired princess with zero magic power, destined to be a sacrifice to defeat the Demon King. To avoid her death, she uses a bug in the game to summon the Demon King, Raven, and desperately asks him to hire her. In response, the Demon Lord says he'll hire her as a "body pillow." While sleeping embraced by the Demon King, Egret's body throbs and becomes hot. "It can't be helped, I'll comfort you," the Demon King says, and then gently touches Egret!? Favored by the Demon King, a life of doting love that melts both her heart and body begins in his bedroom!