What If My Chuunibyou Diary Came True?

[Upcoming story: A Fox Spirit's Cultivation Handbook] After cultivating for a thousand years, Shen Yishuang finally took human form, only to fail at the last hurdle when she faced her tribulation. Luckily, she managed to bind herself to a wild System in time and enter another world to recover. Putting on an act, sowing discord, stopping at nothing, playing with people's feelings, bewitching hearts, and coveting vanity: these are basic skills for a fox demon. She has no outstanding virtues or noble principles, only ruthless methods and wicked thoughts. She's neither kind nor upright, yet her beauty is unparalleled, and great scholars will argue her case. Shen Yishuang says: What could she possibly have done wrong? She only wants to give the handsome young men a home~~ [Blurb] In the eighteenth year since he transmigrated into a two-dimensional world, Umegawa Masayuki finally received his long-awaited golden finger: a diary-come-true System. Masayuki: ...Wait, a diary? Is it really what I think it is? System: Have some confidence. It is exactly what you think it is :) And then the diary he'd written during his chuuni phase was exposed to the entire internet. At first-- "Hahahaha, what the heck is an examiner?" "My toes are curling up from secondhand embarrassment. I respect the author for having the guts to write down these chuuni ideas in a diary and publish them! By the way, [doge] how much does a Devil Fruit cost?" "An invasion from another world? I'll sit back and wait for demons, monsters, and aliens to attack, lmao." "..." Later-- The little detective who saw a Shinigami: "So I was cursed by black magic called Ankhseram, which made me spread death energy?!" The supreme ruler of Rikkai: "So a Gold Saint once trained me? I wonder what I have to do to see my master again?!" The Port Mafia's gravity user♂: "So I'm a jinchuriki?!" "..." So those space pirates, falling meteorites, glorious spirits, nine planets aligning, Infinite Tsukuyomi, Holy Grail Wars, and all that stuff are actually real too?! The natives: Help! Is there any way this world can still be saved?!!! Reading Guide: 1. The protagonist operates as a mastermind from behind the scenes, and his identity is never exposed. 2. Since this is a shared universe, the timelines of some anime may change. 3. Original details abound. 4. OOC, OOC, OOC. 5. I'll add more if I think of anything. Theme: Dreams are the ladder of human progress