"Taking him captive could have worked, just because it didn't work doesn't make her naive! You only call her naive because you have the benefit of a reader's viewpoint!"
Uh...killing him would have had a 0% chance of failure. Have you noticed how many mangas where simply killing the enemy would...
None of that stuff is nearly enough to make readers sympathize with Menou. The author/artist is doing a terrible job at justifying her monstrous character and actions. In another world, this would be more than enough grounds to justify some kind of revenge porn murderfest isekai series, and we...