Why are all of them passive skills?

Recommend new book [I have a portable shopping mall]

It's a matter of life and death!

Brothers, my younger brother needs help!

Please take a look at my younger brother's new book [I Have a Portable Mall].

First published on Qidian, please collect, recommend and invest!

If you have other channels, please collect it on Qidian, after all, Qidian is the first to publish.

Please help the freebies!

(Click on my avatar to see the new book)

(If it's not good, don't worry about it. If you like it, please vote!)