Well, the words 'negawakuba no konote ni koufuku wo' in the web novel title are rather mysterious. It might be a story that delves into the concept of how one's desires or hopes ('negawakuba') are connected to the attainment of happiness ('koufuku') and how the hands ('konote') play a role in this. It could be a character - driven story where the protagonist tries different things with their hands, perhaps in a magical or spiritual context, to reach a state of happiness. It could also be a more psychological exploration of how our actions (using our hands symbolically) can lead to our well - being and happiness.
One possible theme could be self - discovery. If the story is about finding happiness in one's hands, it might involve the characters exploring themselves.
Since I don't have direct knowledge of this web novel, it might be a story where the protagonist tries to grasp happiness. Maybe it involves a series of events, characters, and emotions that all revolve around the concept of attaining this so - called 'happiness' with their own hands.
Since I'm not familiar with 'negawakuba no kono te ni koufuku wo web novel' in detail, it's hard to recommend similar ones. However, there are many web novels that deal with the themes of hope and the search for something important. For example, some novels about characters finding their purpose in life might have similarities in terms of the emotional journey.
It depends. Generally, you need to obtain proper permissions or licenses to use New Yorker cartoons in your PowerPoint. Without the right authorization, it could be considered copyright infringement.