Friends, Have You Ever Heard of the 1999 Non-Disclosure Agreement?

[Multiple perspectives] + [In-depth experience] + [Multi-party game] + [Adaptation of Internet legends] As an experienced Internet keyboard player, Liu Yu's intense participation in discussions on various hot topics on the Internet is naturally part of his life. But after an unexpected reply, a mysterious force pulled him into the mysterious system. In the system, Liu Yu will have to choose various identities: NASA employee, scientific researcher, defense force soldier... Each role is a relevant person and participant. Play every role well and fulfill your duties in every position. Liu Yu will witness a short and splendid interstellar epic belonging to mankind.