C876 A Gift from My Father-in-law

A bunch of Blue Firmament grade materials, a small pile of weapons and equipment, as well as incomplete products, a workbench that looked a bit like it belonged to Earth, and a rather heavy book that had no cover on it.

Wang Xiaojian guessed that this book was pretty important, so he took it out of the space immediately.

Flipping the first page, Wang Xiaojian saw two big words, "Notes"