I Signed in the Coffin to Become an Immortal

[Sign in + Ban Gou + Missing + Daily + System + Recruiting Disciples + No Female Lead +...] Lu Yin traveled through the Shenxuan Continent, awakened the sign-in system at the beginning, and obtained a bronze coffin! As long as you sign in at different locations, you can get different rewards! But unfortunately, he can't get out! I can only sign in and practice lying in the coffin, but fortunately I can be carried forward! In this way, Lu Yin passed through thousands of rivers and mountains, and the story of the coffin-carrying man was spread throughout the world!