The main character is likely Rimuru Tempest. He's been central to the series throughout. There may also be other important characters like his friends and allies in the Jura Tempest Federation.
Well, one key feature could be the further development of the characters. The story might introduce new abilities or aspects of the main characters. Also, the plot could take new twists and turns, perhaps leading to new alliances or conflicts in the world of Tensura.
I'm not entirely sure without reading it specifically, but it's likely that Rimuru Tempest is still a main character as he's central to the 'Tensura' series. He has been on a journey of growth and development throughout the previous volumes, so he would probably continue to play a major role in this one.
One key feature could be the development of the plot. Since it's volume 15, the overarching story must be evolving. There could be major revelations about the main antagonist or the true nature of the world. It might also contain more complex relationships between the characters, like new alliances or betrayals.
Most likely, the important characters in Tensura Volume 20 would be the ones who have been central to the story so far. The protagonist, who has been evolving throughout the series, is sure to be important. There might also be some recurring side characters who play crucial roles in this volume's plot, like his allies or those with special knowledge about the world or the challenges he faces.
Rimuru is likely to be one of the most important characters as he is the central figure in the Tensura series. His actions and decisions usually drive the plot forward.
The main plot points in Tensura Volume 20 likely involve the continued growth and adventures of the main character. There could be new challenges, encounters with powerful foes, and perhaps the discovery of new abilities or realms. However, without reading it, this is just speculation.
In Tensura Volume 7 Light Novel, Rimuru is an obvious interesting character. He has to navigate complex political and social situations. Another interesting character could be a mysterious new arrival who has powers or motives that are not immediately clear. And the characters who represent different species in Rimuru's territory are interesting too as they each have their own cultures and ways of thinking which interact with Rimuru's vision for his nation.
Well, in Tensura Volume 7, one of the main things is the further development of Rimuru's territory. His leadership and the growth of his community play significant roles. There are also new characters introduced that bring in different dynamics and challenges to the story. Rimuru has to deal with diplomatic issues as his influence spreads.
In Tensura Volume 11, perhaps there are more in - depth explorations of the unique abilities of Rimuru's subordinates. It could also involve political intrigue within the monster nation that Rimuru has built. Maybe there are battles against new and powerful foes that test Rimuru's strategies and the strength of his forces.