Why has the world line collapsed again?

【2023 Webtoon Competition Entry】
No synopsis. Follow the protagonists and explore this world little by little!
Gentle sword cultivator younger brother x Sunshine-oriented older brother
The art style will differ between the early and later stages, because I'm trying my best to draw better.
To avoid an abrupt cancellation ending, I will not sign with any platform.
The workload for a solo creator is heavy, so please understand that updates will be relatively slow.
Finally, thank you again to every friend who appreciates my work! I hope you can leave more comments and interact!