Fanfiction about Matoba and Natsume in Natsume Yuujinchou often explores their complex relationship. It might show how Matoba, with his rather mysterious and sometimes morally ambiguous nature, interacts with Natsume, who is kind - hearted and has the ability to see spirits. Some fanfictions could focus on their potential friendship development, despite their initial differences and the wariness Natsume has towards Matoba due to his methods of dealing with spirits.
A frequent theme is the clash of ideologies. Matoba's more traditional exorcist ideology of subduing spirits may conflict with Natsume's ideology of co - existing with them. Fanfictions might show how they try to reconcile these differences or how the conflict affects their relationship. Also, the theme of trust can be prominent. Given Matoba's actions in the original series, Natsume is initially distrustful, so stories may focus on how trust is either gained or lost between them.
Perhaps a fanfic where Risa is a new transfer student and Sirzech is assigned to show her around. Along the way, they get involved in a mystery involving missing students. Their relationship could grow as they work to solve this mystery, with Sirzech protecting Risa at times and Risa using her wits to help Sirzech in making crucial decisions.
Well, without further details, it's hard to say a great deal. But generally, a teacher like Risa Onodera could be involved in curriculum planning, student assessment, and providing guidance to her students. She may also participate in school activities and collaborate with other teachers for the betterment of the educational environment.