Tied To You [Karma X Nagisa]

Seven years ago, Nagisa Shiota was a middle schooler. He had an amazing teacher who had taught him about the importance of life. And now Seven years later, Nagisa is ready to do the same for a group of high schoolers...

Nagisa has been with his lover for a little over five years. Yes, that lover would be a certain redhead. Karma Akabane.
But lately strange events have been causing the couple to somewhat drift. But neither of them knows it. And on top of everything else, memories of the past begin to haunt them. Will these to very unfortunate souls be able to regain their former happiness or was this relationship meant to break apart?
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Just for fair warning, this story is mainly about the relationship between Karma and Nagisa. Which means this story is a boyxboy, if you do not like something like that, please don't read.
*This story may also include swearing, descriptions of abuse, etc, please read at your own risk*

P.s. None of the Ansatsu Kyōshitsu belong to me.