The Sign has everything I adore in a series: romance, mystery, action and that infallible touch of mythology, which is my weakness. Under these circumstances, my rating should be higher, also considering the story is interesting, the plot is airtight (plot holes are one of my peeves), and the chemistry genuinely chemistry - fies.

Not that this is a bad rating, but again, I would generally rate something like this much higher. So let me explain my thought process, starting with the mystery/action aspect. It's solid, it truly is. Albeit slightly predictable and simple, it was consistent. I genuinely loved that they solved multiple cases that umbrella - ed as one big case, and as far as I took note, there were no loose ends or plot holes. Every case they worked seamlessly tied up with the major case through the players, and it even seemed like they would link the mythological aspect to this plotline.

That's where I was wrong. Let's clear this up first: I know it's difficult to incorporate mythology/history into a fictional account. It requires tons of research, poring over books, journals, documents, and so much more. I also understand that when you're working with mythology and history, it's a difficult situation to maneuver, (especially when you're talking about two major characters who's stories have wide and varying interpretations). But there's still room to work with. Without giving away too much, let's just say I expected more. They promised grandeur and complexity, but what we got was absolutely none of that. The entire mythological plotline was tied up to the romance between the leads and not much more.

Which then leads us to.. the romance. I'm going to be completely honest, Billy and Babe, they have chemistry. I did say the chemistry chemistry - fied, and I wasn't lying. They have a hot and cold relationship in the beginning, which I'm going to chalk up to a genuine plot point, it was understandable. Even when you felt they were being bratty, frustrating or just a teensy bit hypocritical, they turned the situation around pretty smoothly and soon. It's really too bad we didn't get to see enough though. This is a totally subjective opinion, but they spent so much time focusing on solving the cases, and the mystery of their past that there was barely any romance. At least for me. And I know it's ironic because I said I appreciated the well developed story, but I wanted romance as well. That's more of a me thing, but I just wanted to mention it.

Let me segue back to my rating now, because despite the positives, I did kind of end up saying they could have improved upon it. That is the reason for my rating.
The truth is, I genuinely enjoyed watching the series. The plot was innovative, the characters were endearing and you all know that I already have a slight bias because of the mythology plot they used. When you watch the series, you can tell they put a ton of effort into this. The cast, the crew, everyone. But I just wanted that little bit more. Again, that's a me thing.

While I do wish they had changed a few things, tied up the loose ends that inevitably cropped up, it was a decent series, and truly one of a kind: I don't see a lot of mythological BLs and it was a rare treat in that sense.