Matsuda's Rivalry-Fueled Girlfriend

As the hapless daughter of the Prime Minister, Tsushima Tsubaki was tricked by the Demon into an infinite world. At long last, she managed to get her hands on a ticket out. Then, with a bang, she was blasted into a Ferris wheel gondola that was about to explode in a firework display, with only 0.5 seconds left. As Tsushima Tsubaki scrambled to escape, she remembered to grab the unlucky guy beside her. Three years later Tsushima Tsubaki returned in triumph from the infinite world, bringing along her "seven-year-old son." She swore to avenge herself for the Ferris wheel! Three years earlier After being rescued for no apparent reason, Officer Matsuda found himself in a bizarre world. It was pretty strange, but he managed to get a girlfriend. He was also incredibly lucky and found a ticket home. The only problem was... Matsuda returned at the age of seven?! No matter. It wouldn't stop him from defusing eight bombs. But his girlfriend was putting on quite a show. Somehow, she became his ex-girlfriend, fleeing with a child of her own. The person in question said that not only had his reputation been ruined, but also... Excited Tsubaki: "Sonny, call me Mom and I'll buy you the whole model shop!" Matsuda sneered and headbutted her. "Hah! Get a grip!" And his two fellow officers were looking more and more suspicious. Known facts: The kid is seven. The kid's mother is twenty-four. A simple math problem. Did Matsuda really commit no crime...? Theme: Love fears nothing.