Nanatsu no taizai is not your typical generic shounen anime, first arc may seem like it would be a very straightforward shounen plot but the story just gets more complicated from there on, it will be a bit hard to review this manga without any spoilers but I will try my best.

As mentioned earlier, The first arc had a fairly simple plot, a princess named elizabeth goes on an adventure gathering 7 legendary criminals, named as 'the seven deadly sins' who she thought was the only way to save her kingdom. First arc was all about introduction half of the seven deadly sins and their mission saving the kingdom from the true criminals, the demon clan.

What is different in this manga compared to most other shounen, it does not focus too much on the main characters to develop powers as they are super strong to begin with, although they do develop new powers along the plot of the story. there's a lot going on in the background stories of the characters which the author reveals bit by bit and when more and more backstory unfolds, you then realize the first arc does not reflect the direction of where the story of this manga was going. there is undeniably a LOT of plot twist, to the point where sometimes I felt it was unnecessary and just confused the readers a bit too much. Currently at the latest arc, it is quite hard to distinguish who is the real bad guy is since everyone has a purpose to fight.

The characters are my favourite part of this manga, since most of them has their own secrets which even to the current chapter has not been fully revealed and for me, that is the driving point to continue reading this manga. The seven deadly sins themselves are a unique bunch, each of them from a different race but they are somewhat connected, in the past and also distant past. I say distant past because some of them have known each other since 3000 years into the past but some of the others only a decade back into the present time in the manga, yes it is quite confusing.

There's also quite a bit of romance going on compared to your standard shounen manga. I mean most of the characters are paired up.The highlight is definitely the love story between meliodas and elizabeth, honestly, their tragic love story is the main reason why this story of holy war is happening in the first place. But due to this specific reason, The current arc would probably be the final arc where most of the characters have already been told and unless a super ridiculous plot twist happens, this manga would not go beyond 400 chapters.

Overall, this is an enjoyable manga but I think some parts could've been made more enjoyable.
however, I would recommend watching the anime first before reading the manga because the fight scenes are so much more well illustrated in the anime. hopefully the ending would be good because I could already smell the end at chapter 265.