One idea could be a crossover where characters from Naruto and The Seven Deadly Sins meet and have to team up to fight a common enemy. For example, Naruto's ninjutsu skills combined with Meliodas' strength would make for an exciting battle.
One idea could be a crossover with another popular fantasy series, like 'Fairy Tail'. The characters from 'nanatsu no taizai' could meet the wizards from 'Fairy Tail' and have to work together to defeat a common enemy that threatens both their worlds. For example, they might face a powerful dark magic user who has the ability to corrupt the magic in both universes.
Perhaps the villains from My Hero Academia make a pact with some of the enemies in Nanatsu no Taizai. The heroes and the sins would then have to put aside their differences and work together to stop this new, more dangerous alliance. This could lead to some interesting character interactions as the very different heroes and sins learn from each other's fighting styles and values.
One interesting plot idea could be the characters from Nanatsu no Taizai and High School DxD teaming up to fight a common enemy that threatens both their worlds. Maybe a powerful demon from the DxD universe that has found a way to cross over to the world of Nanatsu no Taizai and is causing chaos there. Another idea is a story about the exchange of powers. For example, a character from Nanatsu no Taizai learning some of the Sacred Gear techniques from High School DxD and vice versa.
Yes, it is. The manga concluded its run after a successful story arc.
Well, in 'nanatsu no taizai crossover archive fanfiction', one might expect to see different art styles or interpretations of the characters. For example, if it's a crossover with a modern - day setting, the characters could be drawn in a more contemporary style while still maintaining their core traits. It might also explore how the powers of the Seven Deadly Sins would fare in different fictional worlds.
It's hard to say for sure. Naruto has his Sage Mode and Kurama's power, which makes him extremely strong. But Meliodas from The Seven Deadly Sins has his demon powers and is also a very skilled fighter. I think it would depend on the situation and how the writer wants to portray their abilities.
One possible plot could be the characters from both series attending a joint high - school event. For example, the Seven Deadly Sins characters could participate in a sports tournament at the High School DxD's school. Meliodas could show off his incredible strength in the athletic events, while Issei from High School DxD might be trying to impress the girls with his newfound powers. This would lead to some friendly rivalries and also some unexpected alliances as they face off against other schools in the tournament.
One possible theme could be the clash of different moral systems. Since 'Nanatsu no Taizai' has its own set of values among the characters, when they cross over, they may face different ethical dilemmas.
Meliodas is always an interesting character to focus on. His complex past, his relationship with Elizabeth, and his role as the captain of the Seven Deadly Sins make him a central figure. In a fanfiction about 'perfect time', his immortality could play an interesting role. He might have a different perspective on time compared to the others.
One interesting plot twist could be when the magic from Fairy Tail interacts with the sins' powers in Nanatsu no Taizai. For example, if Natsu's fire magic somehow combines with Meliodas' full counter, creating a new and unexpected power. Another could be the characters being transported to the opposite universe and having to adapt. Like Lucy ending up in Britannia and having to deal with the Holy Knights while the Seven Deadly Sins end up in Fiore and face off against the dark guilds.