The Hero Who Transmigrated Turns Out to Have a Demon Lord for a Senior!!

[The main story is complete. I'm working on the extras. Once I finish writing the after-story bit by bit, this tale will be over.] In the Nth year after the world was destroyed and reborn, you awaken in the chaos. As a god, you once destroyed the old world. You still dislike this world, and you resolve to reclaim your power and destroy it a second time. Before that, you meet a fascinating pen pal. You've never met in person, and he has picked up the Book of God, a manifestation of your power. You communicate through the book. He tells you, "When the number is odd, the sign stays the same!" You reply, "Check the quadrant for the sign." He says, "Palace jade liquid wine!" You reply, "One hundred and eighty a cup." You reply to those lines out of habit. You've almost forgotten why those answers come to you instinctively, but he's incredibly excited, like a crazed cultist who's just cracked a secret code. He says, "(Roars) (Turns into a monkey and crashes into a tree) (Swings healthily on a vine) (Screeches loudly) (Flies healthily) (Cries hysterically) (Healthily crashes into a passerby) (Beats his chest and roars excitedly) (Kicks over a roadside trash can) (Eyes brimming with tears) I've finally found you, senior!!!" You: "..." Don't scribble all over the book!!!! You think he's a little bizarre. Gradually, you find him warm and amusing. You start to want to meet him. You disguise yourself as a follower of the enemy and sneak into the group he's assembled to defeat you. At your first meeting, you discover that he has perfectly hit your XP! Blond hair, raised brows, alluring eyes, tall, broad-shouldered, with a lean waist. "A big-chested, affectionate puppy of a man who babies everyone is the best!" you think, trembling. You try to psych yourself up. One day, you'll work up the courage to reveal your secret identity and greet your pen pal! Uh... except he doesn't seem to like you much as the Demon King. His goal is to take you down. You: I need to find a way to make him my follower. * You've been fooled. The affectionate puppy isn't affectionate at all. Now he's a deranged, savage, rabid wolfdog! No matter what, the puppy who used to whine "senior" and "Why are you like this?" is gone for good! You become completely convinced he's a bad dog. And by then, the two of you have formed an inescapable bond through loving and fighting each other. You lie in tears against his muscular chest and eat three extra bowls of rice. * A Western fantasy tale of a ragtag, frail party braving the world. = = A story about traveling to another world. The kind where they eat, drink, have fun, stay in unique inns, buy local souvenirs, visit tourist attractions, and fight monsters now and then. Couple: A seemingly affectionate, big-chested, nurturing man who's actually a crazed wolfdog knight and transmigrator X a beautiful elf Demon King who's just as beautiful on the inside, in a completely unhinged way * [My completed second-person novels are ready to read QVQ] "Raise Your Kid the Wholesome Way": An evil god wants to raise kids, so it works hard to bring up little Toji, little Gojo, and Sukuna. "After Losing My Memory, I Bonded with Toji": A twisted true-love story where Toji and I make a negative times a negative into a positive. "Love Story Collection": A collection of JoJo romance stories. "After Failing to Win Over the Strongest": A sweet-and-sour love story about a down-on-his-luck elf who runs into his strongest ex, a white-haired man in a blindfold. Theme: Even in desperate situations, hold on to hope and stay true to yourself.