She is the daughter of Katsuki Bakugou, a 17-year-old student at the second year at UA. Y/n is identical to Katsuki except for her eyes which are the same color as her mother, blue. she has inherited his quirk as well, but a little more evolved. She can control the timing of her explosions. she and Toshi struck by a quirk during a villain attacks meant for her, because the villain wanted to erase the Bakugou’s bloodline and because everyone in their time said that she was so powerful that she could become the number one hero,and sent back to 20 years in the past, in their fathers's third year at UA. but they aren't even injured. They just lost consciousness. Along with her is Toshi Midoriya-Izuku and Ochaco's son, and also her boyfriend. and together they try to find a plan to bring them back. She is Toshi's girlfriend. Her mom died (her mom died was a normal quirkless woman who died in a collapsed building a cause of a villain attack) when Y/n was 5 so after that it was just her and Katsuki.