Well if your character is necromancer, then obviously there will be death and corpse so you can't avoid that subject. Personally I have lost quite number of people in my life so I can told you that yeah, death can be a touchy subject for me but that's why if you are going to touch that subject, be good at it. Also, this might sounds offense I apologized before but since you know how it feels like to lose a loved one, you can use that to enhance your story.
'I no longer remember the date. I no longer remember anything from that day since I lose you. All I remember is the smell of the roses that they used on your coffin. Funny, how I used to love that flower because it's your favorite. Now even the sight of it makes me remember how pale you looks like, wearing that white gown. Why white? It's your least favorite colors. But I can't tell them about it. I can't say or do anything. Even now, your parents still refused to even look at me.'
I can tells you that the monologue above is completely fiction. But I put my own experience there so it will be more realistic to me.
So well, if you are going to touch a touchy subject, pull out all the stops, put disclaimer so people think they know what to expect and surprise them lol.
Edit : I know I am not that good a writer, English isn't my first language and I have heard so many people say my grammar and tense is horrible I don't even care anymore. So yeah, my example isn't that good, but I hope you got the points.