Maybe he just doesn't like the way supernatural elements are often exaggerated or misrepresented in fanfiction. He might prefer more realistic or traditional forms of storytelling.
A plotline could be that Issei discovers some secrets about Rias that he doesn't like. For instance, he might find out that she has been using him in some way for her own goals in the underworld. This would lead to his hatred and a break in their relationship. He could then start working against her, forming his own group or allying with her enemies.
Well, it changes it a great deal. Usually, Issei and Rias have a relationship where there's a lot of mutual attraction and respect. But if Issei hates Rias, it creates a lot of tension. Their interactions would be filled with hostility instead of the usual banter and flirting. It would also affect the group dynamic. Other characters would have to choose sides or try to mediate between them.
Another reason might be a clash of values. Issei could have a very different view on how to handle certain situations compared to Rias. For instance, he might believe in a more direct and aggressive approach while Rias prefers a more diplomatic or strategic one, and this constant difference in opinions could lead to his hatred over time.
One way could be to introduce him to some high - quality supernatural fanfiction. If he reads some well - written ones with great plots and interesting characters, his view might change.
I'm not entirely sure as the description is rather unclear. It could potentially be about a character named Issei in the 'DxD' universe and some sort of action related to a fanfiction about him. Maybe it's about exploring or creating a fan - made story where Issei is involved in a stroking action, though without more context it's hard to be specific.
In some fanfictions, Issei's character develops by becoming more mature. He realizes the consequences of his actions more deeply. For example, when he uses his powers, he starts to consider the collateral damage and tries to minimize it, which is a big step from his more impulsive self in the original story.
In many Issei in the Darkness fanfictions, Issei often undergoes character development. He might face new challenges that are different from the original story. For example, his relationships with other characters can be re - defined. He could form stronger bonds with some characters while having more complex rivalries with others. This makes the fanfiction interesting as it gives a fresh perspective on the character.
To determine if an 'issei' has cheated on fanfiction, we would need to look at the specific fanfiction in question. Different fanfictions have different storylines and character developments. Maybe in some very niche or specific fanfiction, there could be a situation where an issei - like character is involved in cheating, but it's not a common or known occurrence in general fanfiction.
It could be his fellow team members. They might betray him out of greed for power. Maybe they thought that by getting rid of Issei, they could gain more resources or a higher position within their group.