Well, it depends on the setting and rules of the visual novel. The MC might face battles against fictional enemies, have to make important choices that affect the story's outcome, or even discover hidden secrets and treasures.
The protagonist might have to navigate the complex politics of the noble society and face challenges related to power and status.
The plot might get really interesting. The MC could use their knowledge from the real world to turn the tables and become a hero despite starting as an antagonist. Or they might struggle to fit in and face a lot of challenges because of their initial role.
One adventure could be related to the local werewolf pack. Teddy might have to prove himself to them. Hermione could be the one to mediate any conflicts that arise. They could also go on a journey to find a lost spell book that is said to be hidden in La Push. Along the way, they'd face challenges like rough terrains and other supernatural beings that don't want them to find the book.
It could be filled with challenges of maintaining power and dealing with rivals. Maybe there are epic battles and strategic decisions to make.
They could have adventures like learning new jutsus. Maybe they meet some of the famous ninjas in Konoha and get trained by them. They might also explore the unique places in Konoha, such as the Hokage Monument.
She could meet a time - traveler. This would open up a whole new set of adventures as they journey through different eras together, trying to fix historical events that have been altered by villains. It would be a great opportunity to explore different time periods and how Supervirl's powers interact with the rules of time.
Perhaps they embark on an adventure to stop a time - traveling villain who is trying to change the course of Vongola history. Tsuna and Giotto would have to travel through different time periods themselves to track down this villain. This would expose Tsuna to different eras of the Vongola's existence and give Giotto a glimpse into the future of the family he founded. They would face many challenges, but their combined strength and determination would see them through.
In the Land of Wave, Naruto and Sakura could also get involved in rebuilding the village. They can use their skills to help the locals. Naruto can use his shadow clones for construction work, and Sakura can provide medical aid to the workers. This would not only strengthen their bond with the villagers but also help them grow as ninjas.
In Alola, Ash and Serena will have a great time. Ash will be eager to learn about the Z - moves and how they can be used in battles. Serena, on the other hand, will enjoy the local cuisine and perhaps use it as inspiration for her Pokemon contests. They may also meet some friendly Alola trainers who can show them around the islands and introduce them to the local Pokemon traditions.
They could get involved in Pokemon battles. Yuki might use his intelligence to strategize in battles, while Tohru would rely on her intuition. Maybe they would meet some Gym Leaders. For example, Brock in Pewter City. Tohru would be fascinated by Brock's rock - type Pokemon, and Yuki would be interested in the battle strategies Brock uses.