User blog comment:Omega natsu2/Episode 181: Fairy Tail vs. Executioners, Review./@comment-24734283-20140510050024/@comment-4829046-20140510145043

I love crossovers as much as the next guy but not when it is BREAKING CANON. These authors put a lot of effort to create their own distinct stories so fusing them in that manner would be a mockery. But yeah, works as fanon. You should write one up over at fanfiction.net. The difference with me is that I don't want mine to be left as just "fanon". Though I do like "What if" stortlines. Those aren't particularly of any issue and allows A/U possibilities. However what you first stated is definitely not that. You make it sound like Nanatsu no Taizai is part of FT.