The reason might be to explore different directions and expand the story's universe. Maybe they got some creative inspiration and decided to implement it in Season 4 to give fans a unique experience.
It could also be due to the fact that some fanfiction might promote values that are not in line with the general community standards. For instance, if it contains excessive violence or promotes negative stereotypes, the platform or relevant authorities may decide to ban it to maintain a healthy and positive creative environment.
Well, if Superman were in High School DxD fanfiction, the power dynamics would be completely shifted. Superman's super strength, flight, and heat vision would make him a dominant force. He might be seen as a rival to the devils and angels in the DxD universe. His moral code would also likely influence the more hedonistic characters in the series.
High school made me more confident. I had to do presentations in class which helped me overcome my shyness. Also, I learned to manage my time better with all the homework and extracurricular activities.
Well, if Naruto's Hiraishin was introduced into the High School DxD universe, it would likely create a huge shift. Characters in DxD would be astounded by the sudden appearance of this teleportation jutsu. It could change battle dynamics completely. For example, in a fight against a powerful devil, Naruto could use Hiraishin to quickly close the gap and land a surprise attack. It might also lead to new alliances as characters try to understand and utilize this new power.
The High School DxD light novel has ended. It wrapped up all the major storylines and gave closure to the characters' arcs.
The High School DxD manga has ended. The final chapters wrapped up the main plotlines and provided some closure for the fans.
Well, in some High School DxD fanfictions, the OC might be considered Satan's son to create a really powerful and unique character. It could be for the sake of having a character with a dark and mysterious origin that can bring in a lot of interesting plot twists. Maybe the author wants to explore the idea of a character with demonic powers and a connection to the most powerful figure in the underworld, Satan.
There could be a number of reasons. Maybe the rights to create a visual novel haven't been obtained, or the market for it was deemed too niche. Also, the complexity of adapting the story for a visual novel format could pose challenges.
The story mainly follows Issei Hyodo, a high school student who gets killed on his first date and is later resurrected as a devil. He then becomes part of the Occult Research Club at his school. There, he gets involved in various battles against other supernatural beings, all while trying to become stronger and also dealing with his new devilish desires and relationships with his female comrades.
High School DxD's story is considered good by many. It offers a unique blend of genres and has a decent amount of depth. The character interactions and world-building add to its appeal. But, as with any story, it depends on personal preferences.