@ MarqFJA87 I think you misunderstood what I meant about his magic. His magic, alongside the incense, caused her to "fall in love" with the MC through the kiss. Remember that his DNA or something has an extreme effect on women. The author didn't just "fail to set it up" it was never even hinted at that she liked men. There's no reason at all to believe she's bi. I mentioned her actions after the kiss because, if she were bi, she would realize maybe it isn't just 1 man she likes, but possible more. Instead she states she hates all men save for MC. That doesn't sound like the words of someone who's bi.
I'm not sure why you're so vehemently defending this mediocre manga.