I Used a Transformation Card to Date the Campus Belle for a Semester

【Class change for all + overwhelming dominance + Kamen Rider】 Xiao Chen transmigrated to a world where everyone could change classes. He was a freshman taking part in his military training assessment. The good news: Xiao Chen changed class into a Card Summoner. The bad news: the monster he summoned was an F-rank bat. Luckily, Xiao Chen activated the Mirror Kamen Rider System. It could strengthen contracted monsters and let him transform into a Kamen Rider. It also granted bonus experience. The more monsters he killed, the more bonus experience and rewards he earned. I level up twice from killing one monster, while other people can’t even gain one level from killing one. Now that’s ridiculously overpowered! Just after Xiao Chen successfully activated his System, the mirror monsters inside the freshman military training assessment dungeon escaped. Meanwhile, the campus belle assigned to Xiao Chen’s team for the assessment went to the classroom to find him, but he wasn’t there. Instead, a strange card on the floor beside his study desk pulled her into the Mirror World and sucked her summoned beast into the card as well. The campus belle was completely bewildered after being dragged into the Mirror World. How had she suddenly ended up in the Mirror World? Where had her summoned beast gone? Just then, the campus belle encountered a monster that had escaped from the military training dungeon. As she was about to despair, Xiao Chen suddenly appeared and calmly said to her, “ADVENT (Contract Descend)!” A monster with enormous black wings appeared and blew the beast to pieces with a single strike. … Campus belle: “Could you give me a Transformation Card?” Xiao Chen: “No!” Campus belle: “What would it take for you to agree?” Xiao Chen: “Are you kidding? That’s my Transformation Card!” Campus belle: “What if I became your girlfriend for one semester?”