Classmate wa Isekai Teni nanoni Watashi wa Isekai Tensei

While her entire class is transported to another world, Akari is the only one who dies and is reincarnated as a beautiful girl in that other world. Along the way, she encounters trouble but remains positive and cheerful, and at times, she lives her second life with great gusto. She defeats corrupt nobles, tracks down criminal organizations, and lives her life with an incredibly positive attitude... It's clear that she was a well-liked person among her classmates!!! (Source: Kadokawa, translated)