Why Is Gojo-Sensei Like This?

[Chuunibyou, beware, severe out-of-character portrayals!!!] Aoki Yukie works hard to get into a university in Tokyo so she can escape being victimized by the Port Mafia. But once she gets to Tokyo, she finds herself facing persecution by nonhumans instead. Thankfully, her new boyfriend is not only handsome, powerful, and rich, but also the adorable younger guy she's always liked. He's affectionate, playful, obedient, and considerate: her perfect dream boyfriend. Most importantly, she's finally found the peaceful life she's always wanted. Only later does she learn that there is no adorable younger boyfriend, and no obedience or thoughtfulness, either. All she has is an immature, unhinged older man. Deceived, Aoki Yukie promptly breaks up with him. She's a woman who only likes younger men. After Gojo saves her, there's no talk of her repaying him by becoming his wife. Instead, he falls in love at first sight with this woman who is perfect for him from head to toe. When he learns that she likes younger men, he shamelessly starts pretending to be a high school boy. Just as the two of them are falling in love, his real identity is exposed, and his darling girlfriend dumps him without hesitation. Gojo: So was all that sweet romance fake? Important content warnings: 1. The female lead is a genuinely ordinary person, not a paragon of goodness. 2. A fluffy, brainless romance. The plot exists only to serve the romance. 3. Doesn't follow the original plot. The story is mostly original and focuses on everyday life. 4. The characters may be out of character. Friendly suggestions are welcome. Theme: Be honest in your interactions with others. Reject deception and promote the beauty of true love.