Mini-Villain Meets Boss Villain

When Doctor Max transmigrated into the book of [Merging Affinities], he slapped the Heroine. With his rotten reputation as a good-for-nothing noble, Doctor Max decided to enjoy a carefree life while preparing for the upcoming war. Unfortunately, he just have to sleep at the wrong place and wake up at the wrong time, actually meeting the Villain who's talking to his demon subordinate!