After My Confession Failed, I Became Another World's Savior

I hope it will be a single female protagonist, and I also hope that the female protagonist will have more scenes. After all, the two of them time-traveled from the same place. It would be bad if only one person travels back. I don't want people here to have feelings for them (the male and female protagonists). After all, this is not their real home. After defeating the Demon King or successfully stopping (sealing) the Demon King, they should be sent back. If it's a harem story, you should either find someone who is just you, someone who has a sister relationship, or someone who has a family (in doing so, you have to bring all the good relationships with the other person back to their world). A single female protagonist is more interesting. I hope the author writes a novel with a single female protagonist. The male and female protagonists should trust each other and help each other so that they can go back together. People in this world should either be friends or enemies, and should not have feelings (referring to love)

A very real beginning, the subject matter is very novel