Whether it be killing slimes, slaying goblins, or... betraying heroes, I personally couldn't care less. It's stale. So damn stale that I'll throw up if I see even one more of them.
Have you ever considered what it's like to be the guide NPC in a stupid VRMMORPG who does this with every run-of-the-mill rando hero that is "summoned" to your world? I can affirmatively say after one million heroes, I'm in hell.
Haaaah. In the beginning, it was fresh and exciting to go on a long adventure, but now, I'd rather just go to a bar and drink all my problems away.
Volume 1 Available on Amazon/Kindle Unlimited
If you enjoy psychological horror you might enjoy my other series on SH.
My Psychotic Ghost Girlfriend an Isekai Experiment Gone Wrong