Fanfiction often takes liberties with the relationship between Izuku and Toga. It could also involve them teaming up against a common enemy. This would require them to put aside their differences and work together. Writers can use this to create exciting action - packed scenes and explore how they would communicate and cooperate in such a situation.
Toga is still alive in the manga. The creators haven't decided to end her character's journey with death. Usually, such major plot points are well-signaled and haven't happened for Toga so far.
Maybe Toga uses his powerful abilities. He could have some special powers like super strength or the ability to manipulate time or space. With these, he might be able to stop Kikyo from harming Kagome.
In fanfiction, their relationship could develop through a common enemy. Suppose a new, powerful villain emerges who threatens both Toga's goals as a villain (in her own twisted way) and Izuku's mission to protect. They might be forced to team up against this foe. During their time together, they would learn about each other's strengths and weaknesses, and this could lead to a deeper understanding and a change in their relationship.
Their relationship could start with mutual self - interest. They both recognize the power and chaos the other can bring. For example, Toga's ability to transform could help Villain Deku infiltrate places, and he can offer her protection in return.
One great Toga Yagari fanfiction could be about his backstory before coming to Cross Academy. Maybe it delves into his training and the events that made him the hunter he is. For example, it could show his early encounters with vampires that shaped his views.
Here is a simple toga himiko camie oc fanfic: In the bustling city of Musutafu, there was a new student named Camie. She was a bit of an outcast with her own unique style. One day, she bumped into Toga Himiko. Toga was intrigued by Camie's carefree attitude. They started to hang out more and more. Camie showed Toga her favorite spots in the city, like the hidden cafes and rooftops. As they spent time together, they realized they had more in common than they thought, and a strong friendship began to form.
Definitely not. 'My Hero Academia' is a popular franchise that has a wide audience including younger fans. Creating such sexual fanfiction violates the spirit of the original work which is about heroism, friendship and growth. It also creates an uncomfortable and unethical environment within the fan community.