I'm trying to create a point and click game and would love to use naninovel for the dialogue system, does it include any point and click functionality like, for example, the one in fungus? or I'm able to integrate it with fungus just for this option?

Naninovel doesn't have a built-in point and click game framework, but you sure can integrate it with a third-party solution. Check this for more info: https://naninovel.com/faq/#can-i-use-na ... sting-game