After a terrible event, the protagonist is given an impossible second chance at life, courtesy of a seductive and dangerous succubus. She calls it the 'Succubus Contract,' and the rules are simple yet deadly: whenever he sleeps with a new girl, the succubus reveals a vital piece of future information that could change his destiny. It's a game of survival where physical intimacy unlocks the keys to fate.

This knowledge is crucial for navigating the treacherous events unfolding around him, offering him a chance to fix past mistakes or prepare for future calamities. However, these insights come at a steep price. The succubus, never far, watches his every move with an insatiable, hungry smile.

Every contract fulfillment comes with a 'reward' she demands, pulling him deeper into her erotic and manipulative grasp. As his life gets tangled up with more women and more secrets, the line between destiny and desire blurs. Can he truly control his future while satisfying the demands of a demonic mistress?