After Killing My Boyfriend

The main story is told in third person.

Here's the synopsis:

I have a secret.

My boyfriend is reborn.

He's been reborn three times, and still hasn't completed his mission.

It's making me anxious just watching him.

Later, I killed him, took over his System, and embarked on the road to conquering the world of X-point.

I think it's pretty great, except there are a lot of pretty girls, and they keep wanting to sleep with me.

Nobody told me! Building a harem was part of the mission, too!