Yes. Kaneki's joining of Aogiri in the manga was a major plot twist. It happened as a result of various factors, such as his desire to become stronger and his struggle to cope with his new identity.
Since I don't have detailed information about 'aogiri penta visual novel', I can only make some assumptions. It could be a story that combines different genres. For example, it might have a touch of fantasy, where the characters in 'aogiri penta' have special abilities or exist in a world with its own set of rules. The visual novel might also focus on the emotional development of the characters. Through the choices the player makes (if it's an interactive visual novel), different outcomes could be achieved, which adds to the re - playability. It could also be that the story delves deep into the backstories of the characters, exploring their pasts and how it affects their present actions and decisions.
I'm not very familiar with specific 'aogiri penta visual novels' being extremely popular. However, in general, visual novels often gain popularity through their engaging storylines, interesting characters, and unique art styles. Maybe you can start by looking at game review platforms or visual novel communities to find out more about them.
You can try to look for it on official gaming platforms. Some popular ones like Steam might have it if it's been released there. Also, the official website of the game developers could be a good place to check.
One option is to check out gaming forums. People in these forums often share information about where to find specific types of games, including 'aogiri penta visual novels'. You could also try searching on official game developer websites or their social media pages. Sometimes they will provide links to where their games can be purchased or downloaded.