Greg and Maura
Greg's nemesis, Maura Shaw, becomes his business partner in the comic book venture and Greg ends up developing feelings for her. This is ironic because Greg and Maura have a history of conflict, but they end up working together for a common goal.
Mr. Meinert's disapproval
The school principal, Mr. Meinert, tries to suppress Greg's business activities, yet unknowingly benefits from them. This is ironic as Mr. Meinert attempts to shut down Greg's entrepreneurial endeavors, but the increased revenue and popularity of the school's fundraisers actually benefit the principal's goals.
Greg's motivations
Greg, who starts a comic book business to make money, realizes that his true passion lies in creating and sharing stories rather than financial gain. This is ironic because Greg's initial motivation for starting the business was driven by money, but he discovers a deeper passion for storytelling and creative expression that surpasses his financial goals.
Greg's homemade lunch business
Greg, who initially despises school lunches, ends up making money by selling his own homemade lunch items to his classmates. This is ironic because Greg starts off disliking the cafeteria food, but he eventually becomes successful by providing alternative lunch options that appeal to his peers.
Competitiveness vs collaboration
Greg, who is initially driven by competition and the desire to outdo his classmates, realizes that collaboration and teamwork are essential for his business to thrive. This is ironic because Greg's competitive nature and desire to be the best initially drive his actions, but he learns that working together and leveraging the strengths of others is crucial for his comic book business to succeed.