I Have Signed in for Hundreds of Years in Another World

The world is downstairs and the world is solved! "The whole world knows everything about the building..." As the owner of Tianxialou, a time traveler from Aqua Blue Star, Lou Xiaolou is currently sitting in front of the window, staring blankly out of the window, mumbling to himself. After discovering the built-in sign-in system, he began to sign in silently, without revealing anything, and in the end even he couldn't remember the exact number of years until his strength was invincible in this world. "Alas, the system is no longer as simple as just signing in..." After years of boredom, even the system has been developed to the extreme by him, with many new and novel functions. However, after a long time, these functions cannot bring even a hint of freshness to Lou Xiaolou. "These days are really boring. Can someone please stimulate me..." "Ding! System prompts!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.