Xu Linlang traveled through time and encountered a 250 system.
When someone asks, Xu Linlang will reply: "That's just its number. I didn't mean to insult it."
The 250 system was dissatisfied with this and protested to the host.
"Don't you think I'm a very useful person?"
"No, you didn't." Xu Linlang said with troubled eyes.
"... You're done."
Concept: How do scumbags survive in various worlds?