I Became a Short-Lived Princess, So I Cling to the Villain to Stay Alive

[Transmigrate into a book + sweet romance + devoted couple + older man/younger woman + growing-up romance] [Mad, tyrannical prince * bright, pampered princess] After transmigrating into a book as a short-lived princess who won’t survive three days, Yan Mingxi is forced to bind herself to a villain-snuggling life-extension System. As long as she snuggles up to the great villain Xie Wanglan, she can extend her life and defy fate. So Yan Mingxi blocks the villain, whose power holds sway over the entire court. “May I snuggle up to you?” “If not, would you mind if I force you?” System: [Host! I only bound myself to you because I thought you were a good girl!] The System’s idea of Yan Mingxi: an easy pushover, humbly begging the villain to let her snuggle up to him. The real Yan Mingxi: timidly trembling, she simply presses her lips to his... Touching his abs buys her three days of life; a kiss buys her seven. To stay alive, Yan Mingxi wheedles, climbs walls, launches nighttime raids... and finds all sorts of ways to snuggle up to the mad villain. But the villain is just too hard to win over, so Yan Mingxi decides to sleep with Xie Wanglan and be done with it once and for all! After a night of passion, she gets what she wants and runs off, clutching her aching waist. He’s terrifying. She never wants to see him again for as long as she lives. She’s barely escaped the capital with her silver when Xie Wanglan corners her at an inn outside the city. “Where are you going, Princess?” He lowers his eyes, unhurried, his voice low and husky. “...Aren’t we snuggling anymore?” A maid knocks furtively. “Your Highness, when are we making our escape?” Yan Mingxi is on the verge of tears. “H-half an hour.” “Half an hour?” Xie Wanglan leans close, his tone dangerous. “You underestimate me, Princess.”