Good news: I've traveled through time, and now I have a beautiful, mature, and impressively shaped journalist mother who loves black stockings. I have an older sister who's a model with a slim waist, long legs, a delicate face, and 36D breasts who loves black stockings. I have a lively, cute, youthful, and beautiful younger sister who loves to wear a sailor suit and white stockings and is always clingy. I have a coquettish, charming, and teasing aunt who's a teacher in stunning black stockings. And before his death, my father left me a set of magical secrets that allow me to see the feelings and locations of women I've been involved with, as well as some very "interesting" abilities. Doesn't this start out familiar? Yes, the bad news is that the world he's in seems to be a city where you can easily become corrupted. Luckily, as a time traveler, he also has a hack for the ubiquitous system. So, I'll—Awesome! (This isn't fan fiction, because many heroines in this type of game start out badly, like the famous "Mou Chao" (a certain nest). To avoid any offence, I'm not going to make a fanfiction, just borrowing the setting.)

How can a demon king survive in this dangerous world filled with beautiful girls? A male succubus responded: First, you must cultivate a group of powerful monster girls. Think slime lolita, tsundere fox-eared girls, aloof wolf queens, playful bunnies, and so on. Then, you need to learn to communicate with others in a friendly way. For example, capture a brave girl's teammate and kindly say, "Miss Brave, you don't want your teammates to get hurt, do you?" Then, gently ask the brave girl's mother, "You don't want me to harm your brave daughter, do you?" You can also express concern for the safety of certain countries: "King, if you don't want to lose your country, please have the Queen come and talk to me." If you're lucky enough to encounter a lovely saint, you should also express your kindness with a smile: "Miss Saint, if you don't want me to bully you in front of the goddess' statue, you know what to do, right?" With these skills, you can successfully survive in another world.