Before coming down, Chu Guang deliberately took a deep breath, just to make a comparison of the air qualities between level B4 and other floors.0

Chu Guang took a look around. It was as clean and spotless as the level B3 when it was just opened, even more dust-free than the dust-free workshop of an electronics factory.0

However the difference was...0

There was no familiar square the functional divisions. There was only a corridor extending straight.0

Chu Guang looked up and saw that there was a door at the end of the corridor that opened to the side.0

Based on the floor plan on the wall, the corresponding position of the corridor in front of him should be the horizontal line in the middle of the letter ‘G’.0

"Little Seven, go ahead and explore the way."0

"Okay, master." Little Seven rolled the wheels forward immediately. It had long been used to its master's caution.2

Seeing Little Seven moving towards the end of the corridor, Chu Guang also took a step towards the outside of the elevator. The next second, he noticed a note at the elevator door.0

That was the only thing that was left there.0

Chu Guang reached out to pick it up and read the familiar handwriting.0

[To the administrator of Shelter 404 and my successor:]0

[... Is there any creature in this world more suitable to be exploited...2