After a long and successful life, I die (are poisoned?) and end up reincarnated as a fairy into the world of sword and magic. I'm now bound as a familiar to a small girl. This small girl is also the only one who can see me and his positive emotions are my only food source. Totally crazy, right? And to make things even worse, there is someone who really wants to kill me from the moment I end up in this new world.

For those who ask why the title is "Reincarnated as a Fairy of Curses", it is because this fairy's real OP power is casting curses. Immensely deadly and repulsive ones of that.