The Pretty NPC is a Pitable Little Thing

Cen Xi, a transmigrator, is a pitiful little guy with an unlucky streak. Every time he chooses a script, it's that infamous unspeakable story. System: [Don't panic, it doesn't matter what the story is, we're just NPCs. We'll just follow the less pitiful plot lines.] Cen Xi breathed a sigh of relief: "Okay, I guarantee I'll complete the mission." But after experiencing several worlds, Cen Xi rubbed his waist, gradually on the verge of tears. What happened to only following the plot lines? Why are all the things that the protagonists in the stories should suffer being done to him?! System: [Sorry, signal lost, under maintenance...]