After I Transmigrated, My Transformation Device Came to Life

Thanks for asking. I'm on Earth and just transmigrated. XX is a college student who spends every day holed up at home binge-watching shows and playing games instead of doing anything productive. He scrapes by and barely passes his finals. One night, after finishing an assignment due the next day, he falls asleep in the hazy daylight. He closes his eyes, opens them again, and the world has changed. Crap, am I dreaming? Did I not wake up yet? After a frantic scramble, XX finally accepts that he has transmigrated, and his whole body came along for the ride. He feels the fat on his body, then looks at the map of Japan he specifically looked up. XX starts wondering: if he climbs onto the roof and takes a leap of faith, will he get home? I'm just an ordinary college student. How am I supposed to survive in this damn mash-up world without a cheat ability? Aaaaaah! Then she discovers that the genuine DX transformation device from the X series she bought has become real. I joke online all the time about buying a fake that can't transform, but that doesn't mean I actually wanted the genuine article! Okay, maybe I did. Who wouldn't want to transform? Hehe. PS: Probably a ridiculous comedy-drama, no romance. The protagonist is a tokusatsu fan, so she's a bit chuuni and not too bright. Expect some painfully awkward jokes. There are transformations, but no unmasking. It's too embarrassing, so I can't write a reveal. The transformation devices follow the original settings. For example, you have to undergo surgery to use an Ex-Aid device, or you'll get infected and game over on the spot. And of course, there are talking belts. This is mainly a Kamen Rider story, with a bit of Ultraman thrown in. That's it. Maybe you'll see classic lines and scenes like "I'm just a passing XXXX," "I just want to see the look of envy on your face," "He says it's okay to go in," and "swearing allegiance as a roundabout way of achieving one's goals." Theme: Spreading love and peace