I'm not sure specifically as I haven't read it. But generally, a graphic novel combines visual art with storytelling. 'Sonne und Beton' might be about various themes like urban life (since 'beton' means concrete in German, could imply an urban setting) and perhaps something related to the sun which could symbolize hope, warmth or new beginnings in the context of the story.
Since I'm not familiar with this graphic novel, it's difficult to determine the main characters. However, given the title, there might be characters who are either trying to escape from a cold, concrete - like existence (represented by 'beton') and are drawn to something symbolized by the sun, like hope or a better life. Or perhaps there are characters who are part of a world where the sun and the concrete play important roles in their daily lives and personalities.
There were a few novels about the Raging Cheating System that he could recommend, including " The Strongest Raging Cheating System "," The Other World's Raging Cheating System ", and " The Raging Super Cheating System ". These novels were loved by readers and were described as refreshing, relaxed, and simple stories. However, the specific plot and content were not mentioned in the search results, so more detailed information could not be provided.
At the moment, there's no definite information on whether Berserk manga will continue. It might, but it could also remain unfinished. A lot depends on the circumstances and decisions of those involved in its production.