The female protagonist's ability is to go back in time, but she will forget what happened. The male protagonist's ability is to remember everything. You can refer to the following storyline: The anime female lead would go back in time, but she would forget what had happened. She could use this ability to avoid making wrong decisions or doing things that were not good for her future. She could choose to go back to an important moment or event in the past, but she would forget everything that had happened, leaving only the memories of the present. This way, she could consider every decision more carefully to avoid causing unnecessary harm to herself. The male protagonist's photographic memory allowed the female protagonist to learn and master knowledge more easily. The male protagonist could quickly read and understand a large amount of information in a short period of time, and could even quickly memorize some new ideas and concepts. This was very important for the female protagonist of the anime. This way, the female protagonist could learn and master knowledge more efficiently to lay a solid foundation for her future.